MIG, gmaw, flux core arc welding, gas metal arc welding q &A

What Other welders Said

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ER 630 stainless 
I am welding with ER 630 stainless hard wire and am looking for a better gas than straight AR. I'm using Ar 98% o2 2% which seams to work well but I'm …

ALUMINUM MIG BLACK SOOT 
WHY IS THERE BLACK SOOT AROUND THE WELD BOUGHT A NEW MILLER 212 AUTO SET AND A15 A SPOOL GUN 100%ARGON BEING USED WHAT AM I DOING WRONG OR IS IT SUPPOSE …

Mig Stick out... What causes it to work better than recessed? 
I know you say stick out is important on mig, but I haven't seen where you explain why it works better. I started using the flush diffuser on my Roughneck …

fixing flux core welds on a roll cage 
i welded in my roll cage with a flux core mig welder. i then posted pictures of the welds and was told it will not pass tech that they are not strong …

Will flux core tack weld on 4130 steel affect the finish weld? 
Hi, I'm new to welding, and am working on a 4130 steel engine mount for an airplane. I've elected to try and tackweld the mount while in the jig and …

80/20 gas mix?? 
I have a miller 212 that I always run 75/25 in. Today I want to get another tank and all the store had was a 80/20 mix. What is the difference in the weld …

Mig Stainless Steel Settings 
I'm practicing welding stainless steel panels 16 ga with .030" 308 wire. When I'm tuning in the settings its strange. It's a slow short circuit transfer. …

Getting started 
I just bought a Hobart Mig welder. I know how to arc weld and use a gas torch, but I have never Mig welded. Which do I adjust first, wire feed, amperage, …

mig welding aluminum 
1. Is it worth it to try to weld aluminum with a mig? 2. If it is will a 110 amp 240 v mig do the job? ---------------------------------------------------- …

weld cast steel 
will er70s-6 mig wire work to weld axle tubes to cast steel housing? --------------------------------------------------- er70s-6 should work just …

square tube frame warping after galvanizing 
Hi, I've MIG welded a few frames up out of 40mm square tubing and sent it out to be galvanized, however each time I get one back, the heat from galvanizing …

Seeing where I'm going 
What is the best way to see the where you are welding when you have to push your weld away from you at eye level? Anyone have any tips cause its something …

Aluminum electrode wire welding to MIG gun tips. 
I frequently have to remove and clean the contact tip of a MIG gun, occasionally as many as three times in the welding of a one pound spool of aluminum …

Mig Tech question 
What is the technical reason for not being able to weld thick metal with a mig? --------------------------------------------------- Here is the reason. …

Welding dump truck bin  
Hello Jody I just started working at this company that fabricates bins for dump trucks and they need me to weld the sides of the dump truck bin. The side …

Best gas mix when Mig welding mild steel 
I was asking the local Miller dealer what was the best gas mix to use when welding on car parts and pieces. He said to strictly stay with 75% C02/25% argon. …

is rooting plate posible with fluxcore 
i have to do a test on 50mm plate with a 3to5 mm gap root and fill with fluxcore. is this possible as i have never done a fluxcore root before. ---------------------- …

help welding steel to cast iron. 
I need to weld the steel axle tubes to the cast iron housing of a rear differential. I have a Hobart Handler 210 using flux cored wire. What's the best …

Millermatic 252 Help with intermittent stops 
On steel side only, machine cuts out every 4 secs. Aluminum side is ok. --------------------------------------------------- I think your best bet …

Power Mig 255C Sputters  
This welder "Sputters" at low amperage while welding 16ga mild steel. Most of my work with this welder is Ag repair with 3/8ths + steel, and it does …

max amount of weave allowed with flux cored wire 
what is the max amount of weave allowed with flux cored wires? -------------------------------------------------- Sometimes if the welding is done …

help with gmaw bad welding results 
When I use flux core wire the welds turn out nice but when using gas the welds are very bad with a lot of small holes in the weld and the contact tip gets …

Deca, Mig aluminium welding, 
Hi there, I bought a new mig Welding machine (DECA, Italy) since one year, to weld diamond plate 1.5mm and 2mm. The result is: -Very Bad & Dirty …

my mig machine has voltage and amperage adjustment. How do I set these? 
I have a Miller Pulstar 450. For Mig I have two adjusting dials, one for voltage and one for amps. How do I set each? What is the significance of each? …

mig welding sheet metal 
Im replacing quarter panels on my car and have been practicing butt welding on the old panels. I have been having problems with burning holes through the …

root pass spray arc 
weld seems to bridge to sides instead of penetrating down to root. welding 3/8 ss plate beveled to knife point no root opening. -------------------------------------- …

help with GMAW settings for CWB test using spray transfer 
I want to pass my GMAW all positions S class CWB test. This must be done as per company procedures, which state that we use a 92% argon 8% carbon dioxide …

Jody doesn't clean his metal? 
Why dont I see shiny clean steel when he migs steel? --------------------------------------------------- jody here... truth is, I clean metal when …

Miller Suit CCase 
I neeed to buy a mig rig. Right now I am running a 1965 Red Face Lincoln. I am strongly considering a Miller Suit Case, now the biggy question is can …

help with flux core settings up hill 
help with flux core settings up hill. ------------------------------------------------- for innershield tips techniques and settings, copy and …

Help with metal core 
what is the the difference from metal core and the the other process what do you run it on push or pull it? what is the wire speed and some mentioned …

welding stainless with a handler 140 
I am welding 20guage stainless duct with a handler 140, my welds are coming out black. iam using .030 wire and and the lowest setting for the wire. but …

Help with mig welding a trailer 
I have an old trailer I made it a long time ago with a friend we started with and old trailer frame add box tubing and we used his lincoln stick welder(buzz …

what is the proper amps and wire speed for 4g weld test using flux core 
what is the proper flux core settings for 4g weld test ------------------------------------------------ I really cant offer a good answer without …

joining square tube 
Hello, I have a job of making an arch for the front of a building. It is 24' 6" long. I will run it through the ring roller to get the arch correct. …

single V groove weld joint parameters in 1.2 and 1.6 mm electrod used in fcaw and gmaw 
please list parameters for the joint pictured for fcaw and gmaw. -------------------------------------------------- Thats a very broad question without …

help with an arking problem 
my miller 210 arks when touched to the metal before I pull the trigger. ---------------------------------------------------- I have a millermatic …

Chicago Electric dual mig 97503 will not feed wire. 
I bought this welder a few weeks ago the first one I took back because the entire welder was very dented and bent when I took it out of the box. Exchanged …

.052 fc settings 
i havent welded with .052 wire in 11 years.i have forgotten what the settings are for 3g & 4g. i'm guessing around 30 volts and 355 wire feed.am i in the …

spray arc disaster.  
running a lincoln power mig 350. the wire is 0.045 Mil spec 70S2 hardwire. the gun is a magnum 400. shielding gas is 98%argon with 2%Oxygen at 42cfh. I'm …

help with fluxcore settings 
How would I run the amps and wire for horizontal 1"plate with fluxcore? ------------------------------------------------- If you are working on a …

Too much or too little gas flow? 
I'm new to tig welding and have a diversion 180. How do you know what the proper amount of gas flow to use on each project? How do you know if your using …

help with flux core 
Love the website! I even bought a t-shirt!!! I'm a novice flux core welder and loving it...here's what my welds look like so far..any advice on how …

Running on a generator 
I have a Lincoln 255 XT power MIG, and a V205T TIG which I want to run off a generator for onsite work. The owner of the welding store told me that running …

flux core with 80/20 gas 
i am trying to weld esab 7100 series with 80/20 gas, the welds look good on appearance bot when i grind the toes of the weld it is full of porosity holes …

what is better? weaving or straight movent stringers 
Hi, I work at Odanah Custom Fab. and on one job we weld 3/8 thick wall tube to one inch plate... the plate is a36 and the tube is almost the same stuff... …

best voltage amperage wirefeed settings 3/4" mild steel 
I am mig welding with a miller big blue 400 and suitcase extreme 12 wire feeder . On a t weld of 3/4" mild steel vertical piece is beveld to nearly a quarter …

G6 test wire MAG welding 
Can you please tell me what this test means exactly? ------------------------------------------------ well first of all , the g6 is actually …

help with up hill mig setting on linclon 255xt 
can you give me some heads up on the settings for up hill 1/4" I'm using a 255xt linclon. Thanks --------------------------------------------------- …

Mig Vertical Up 
What settings do you use? Wire speed- Volts- Technique? My vertical down is pretty. My vertical up looks like a rolly polly oley? It is humped up …

Hobart 140 and aluminum 6063 HEEELLPP!!!!!!! 
First try at aluminum 6063 with hobart 140 mig running ER5356 ally wire in .030" at highest amp and fastest wire feed speed under 75%/25% Ar/CO2. Was …

233, 232, coreshield 8? 
I was running those at 26.6 and speeds between 296 and 308 , but for the miller flux core machine, what do you run the LN25's at with 233, for vertical, …

vertical down MCAW 
i'm trying to qualify a Vertical Down procedure with metalcore 0.45 wire. i need to provide macroetching samples for 1/4" fillet on 3\4" back plate and …

1/16 flux core heat settings 
I am going for a 1f weld test tomorrow. I have burned a lot of .045 wire and I usually run between 26-28 v with 28-34 wire speed. I need some ball park …

Flux core ? 
I have a small firepower mig welder. I normally use gas. I had to do some overhead welding which was ok, but probably not very strong. I thought flux …

Globular Transfer? Short-Circuit Tranfer? What the @#$% 
I have a 180 Power mig. Can I do both of the above? Whats the difference? Thank you for this site, Its a huge help. Much respect, Tim ---------------------- …

tapered nozzle or straight w/ open root? 
Hey guys, I've really got a concern and I know that its probably just the technique i'm using. when welding an OPEN ROOT v-groove 1/8th by 1/8th; 1/2 " …

help with everything! 
i just bought a 120amp/230watt dual chicago electric welding system model # 97503, mig welder from harbor freight and my out side breaker is a d 50 …

plate test for shipyard 3g,4g 
i have to take a plate test 3/8 plate bevel both sides no backing with.045 dual shielding wire 71m i believe can you give some advice on wirespeed and …

Mig-ing an Open Root Aluminum Repair 
Jody Collier Hello, thanks for the welcome. Great site and what an awesome resource! What is the most efficient way to submit questions and receive …

There's no doubt about it, this is the big stuff! Welding Thick Steel 
Hey Jody, I will be welding on 1 1/4" pieces pushed together at an 1/8" apart with a V between the pieces. Yes indeed this is the big stuff. It happens …

help with flux core wire. 
I seem to have so much splater with the flux core wire that i am using but the weld is not to bad.could it just be the brand of wire? Cheers Chris …

Wire feed issues on s22a feeder... 
Hello, I have a Miller Maxtron 450 inverter that I stick and wire weld with. It has a very smooth arc and has a s22a control cable feeder sitting on top …

welding pot metal ? 
A friend mine gave me a 6" tall statue of a dancer standing on one leg. It is broken right above her ankle. I think is it is pot metal. A magnet won't …

Flux Core Welding Test 
I will be required to become certified with the company I recently started working for, but haven't been welding for a year now. The test will be conducted …

ground clamp recomendations 
hi ive noticed you recomend the same miller ground clamp quit a bit with the shunt im wanting to take your advice and upgrade my hobart ironman 230 with …

Welding in cold temperatures 
Can anyone tell me if there is a certain temperature you should not wire weld steel? I am meaning the weather outside, freezing temperatures. Using .072 …

flux core/argon gas .035-.045 
can spray transfer be used on mild steel 1/8"-1/4" and how to determine distortion while spray arc? ------------------------------------------------- …

spool gun wire feed rate 
I just set up a A30 spool gun on my millermatic 200.Every thing seems to work ok except the wire speed rate does not change from 0 to 10. The spool gun …

help with fluxcore welding problem 
I have purchased a new fluxcore mig welder and am getting really bad welding results. The welds are very crusty and lot's of weld splatter sticking …

MIG welding & lack of fusion 
I am a welding instructor @ local JVS, all of the welding machines in the shop are having the same problem --lack of fusion. We are doing a 1G weld on …

welding aluminum with ceramic tape 
Is there a certain technique to welding aluminum plate open butt, single v groove with ceramic tape backing? ------------------------------------------------- …

Question on the copper ground clamp suggestion 
Dear Sir, First off, GREAT website! This has been the SINGLE MOST helpful source of info I have EVER found to help me learn to MIG weld! I HOPE …

Help with open root mig 
I have a weld test at a vessel fab shop that's going to be open root hardwire mig .035 wire on 1" plate with bevel. I've never done open root with mig. …

overhead dual shied 045 wire 
what should my heat settings be

help with MIG sputtering 
I have a new-to-me Lincoln 250. At higher voltage/wire feed setting for thicker metals I can get a good, consistent bead. At lower settings for thinner …

FCAW-GS Contact Tube to Work Distance 
How do I determine the maximum and minimum: Contact Tube to Work Distance using .045" wire electrode?. Under a welder's hood it is next to impossible to …

help i get worm tracks in my fluxcore 
i have been welding on heater treaters for years recently have noticed that i have been getting worm tracks only when i start welding the curves of a fire …

mig welding test  
i have been welding for years and am very good at it. a couple of days ago my place of business gave welding tests and good welders passed and bad …

im doing open root fcaw plate and i keep blowing holes in the sides why ? 
im doing open root fcaw plate and i keep blowing holes in the sides why? -------------------------------------------------- many fcaw wires have …

Arc weld isnt joining two metals 
I am learning to weld and i can run a bead of weld on one piece of metal fine and have no problem keeping an arc. but when i try to weld two pieces of …

what thikness can a flux core only weld 
I am trying to figure out which kind of welder i want to buy, so i want to know the highest thickness of metal i can weld with a flux core only ----------------------- …

3G test in FCAW 
So I have always just stick and tig welded, since work is kinda scarce right now I found myself having to go to a fab shop for work. The test in a …

Flux Cored Arc Welding 
I will be having to perform a metal-core welding test! What can i expect from one of these tests? Will I only be performing flat welds! Will there be …

cause of weld defect's in fcaw  
The trouble I 'm having is what appears to be "worm track's" on the face of the weld it does not look like piping porosity in that in most case's it does …

Help with seeing the weld puddle during welding 
I'm 14 and just started, I keep my auto-darkening helmet to go to around shade 10 in dark-state and I don't know what I'm doing wrong to not be able to …

Help with mig welding different thickness metals 
I am going to be joining a 3/8' plate to a 1/8 inch automotive frame. What technique should I use? Especially uphill welding? --------------------------------------- …

Is it possible to weld aluminum diamond plate? 
I am learning and reading and watching before I go out and buy....before I give it a try. (There aren't any local welding classes-I've looked) I am making …

metal transfer 
how would i know if i enter globular or spray? is their any volts/wire speed specs for ether one or gas. ------------------------------------------------- …

Mig welding 4130 tubing 
I am building an ultralight aircraft called a trike. I wish to use my MIG welder to weld the 4130 N tubing which is .049" wall for the trike frame. …

mig weld beads 
just wondering what size my stringers should be example: 1/2 setting on my machine - should the bead size be 1/2? _________________________________________________ …

help flux core overhead 
Hey i was just wanted to get a few tips here. I have to do a fcaw test in the overhead postion for cwb. Was wondering about the heats. Its a .045 wire …

no gas 
can you weld solid core wire without gas? ------------------------------------------------- negatory...no can do

Making pretty tack welds 
I'm pretty new to welding and i want to know how to make pretty tack welds when the two metals have too large of a gap between them to just make a small …

weld penetration depth???? 
100% weld penetration depth is sensible or not? is there any standards for Weld penetration? What min penetration depth is required (if two different …

Overhead MIG V-Groove  
I'm having a lot of trouble with this weld.I'm required to run an open root, two filler passes, and 3 caps on 3/8 steel with a 35 degree bevel, 3/32 landing …

mig welding steam pipe 
My question is … can I mig weld steam pipe? It is schedule 40 black iron pipe ranging from 3” to 8”. If so what kind of wire would be recommended? ER70 …

stupid steel vs es 70 s (mig welding) 
I got a nice manager chair and eventually broke about 3 years later. The break begins where the "collar" is welded with the metal bracket for the bottom …

Shielding Gas/ Mig & Tig 
I have a small Craftsman Mig welder that seems to work really well, I also have a Tig welder coming soon,( i've never Tig welded before) I'd like to avoid …

uphill flux core help 
What are the proper volt-amp-wire speed settings for welding .045 flux core uphill with 75/25 gas? What is the best technique, stringer or weave "U"-"V"-"upside …

Help with burn back on thick metal 
Your site is great. I really appreciate all the great information. I have a Hobart Handler 210 and it has been great so far. Welding exhaust and up to …

help with multi run fillet weld! 
Doing my cert in Oz,first test is fillet weld three runs,three stop starts....I can get peno ok, but appearance with the three runs ...well never quite …

no arc 
I have a Lincoln Pro 135 wire welder and it will not weld. I have what I think is a good ground, I cleaned a spot with my grinder and still no arc. …

How to keep narrow weld beads in aluminum 
Hi, I'm welding 3/16" and 1/4" aluminum for a boat project. The welds are sound and look good but I'm having a problem keeping the beads the correct width. …

Mig welder in Guatemala 
Using for first time 120 v Mig wire feed with flux core wire. Any suggestions for welding 1/16 square tube without burning through or only a surface weld? …

exhaust pipes 
Will a 90 amp wire welder weld exhaust pipe? --------------------------------------------------- yes it will. but probably a lot better if bare wire …

Best practice for bead sequencing on large diameter steel pipe using mechanized GMAW-P? 
I'm having difficulty qualifying a procedure using GMAW-RMD (Miller short circuit process - not the problem) followed by filling the joint with GMAW-Pulse …

getting your weld to lay down? 
What is the best way to get your welds to lay down and not rise up? For example if I slap a bead down it looks like a worm lying on the flat steel. Also …

what does duty cycle mean? 
What is duty cycle? --------------------------------------------------- Duty cycle is what percentage of time a welder can weld in a 10 minute period. …

vertical up tee joint need help 
can anyone tell me how to do this properly im in school and every time i get undercut my instructor wants us to do a single pass but the paper says do …

how much psi for mig welding 
Wondering how many p.s.i. for mig welding ------------------------------------------------- i think you might mean flow rate and not pressure. …

how long does it take to weld a 16 inch sch. 40 carbon steel pipe with flux core wire 
how long does it take to weld a 16 inch sch. 40 carbon steel pipe butt weld pipe with flux core wire --------------------------------------------------- …

Dualshield or Pulse? Not rated yet
Which is will produce the better weld, pulse or dualshield? Been away from the trade for a while and it was always my experience that the E71T1 weld was …

using nr 232 .072 wire Not rated yet
I'm getting what looks like worm holes under the flux. i am welding at 19 volts and about 100 wire feed I have tried changing voltage and wire speed …

help with mig welding aluminum Not rated yet
would like to see a video and any tips you may have on this subject of mig welding aluminum.i would like to get a cert on aluminum and i strive for greatness …

what wire size to use for lincoln 180  Not rated yet
what wire size is best for a lincoln 180? I has .025 solid core now and was thinking about going up to .035 ------------------------------------------------- …

Help with 1/8 open root 2g single v bend test mig Not rated yet
Cant seem to figure out what to run the machine at.. fine on test plates and fill and cap but on my root wire hesitates and globs up. Also wondering about …

Seeing where I'm going Not rated yet
What is the best way to see the where you are welding when you have to push your weld away from you at eye level? Anyone have any tips cause its something …

interpass temp 3/8 butt 2,3,&4-G H-plate weld test  Not rated yet
Marine grade aluminum 3/8 butt 2,3,&4-G H-plate weld test .035 , interpass temp ? , Also settings , volt & wire speed ? Using Miller saw or , " suicide …

Opinion on Craftsman mig welder Not rated yet
Is a Craftsman 265 amp mig welder (model# 20509) a good welder? It lists for over $2500 but is being discounted to around a $1000.... It also appears that …

Flux core welding limits Not rated yet
When using flux cored wire for mig does it limit the mig welder or will it do the same as with shielding gas? --------------------------------------------------- …

Flux core welding equipment for vertical welds Not rated yet
Is there a suitable Flux core welding equipment for vertical position welding process? --------------------------------------------------- Flux …

flux core wire question? Not rated yet
when mig welding galvanized sheet metal 14 gauge and thinner is it better to use flux core wire- ? or use wire/gas-? ------------------------------------------------- …

flux core wire Not rated yet
can you use 75/25 argon,co2 mix with flux core wire. --------------------------------------------------- yes , some flux core wires are specifically …

regulator settings on 3500hd lincoln welder Not rated yet
i have a lincoln 3500hd 110v welder noticed after replacing my regulator and gas cylinder welds look dirty and have soot around them were before they were …

Flux core welding on half inch steel plate and pipe Not rated yet
What are some of the common machine settings for Flux core on half inch steel pipe and plate in all positions? --------------------------------------------------- …

different wire Not rated yet
I was welding with WELD-Matic welding wire by J.W. Harris (ER70S-6) Size .030" on my Hobart wirefeed,when I ran out. I ran out to Lowes and got Lincoln …

info on flux core welding Not rated yet
I work for a steel mill service company and we do maintenance on slag pots using .120 innershield wire. The cracks we weld up are 4 inches deep and its …

WHATS GMAW spray transfer  Not rated yet
what does GMAW stand for? ------------------------------------------------- GMAW stands for gas metal arc welding. GMAW-S stands for gas metal …

6g flux core uphill Not rated yet
I have to take a 6g hard wire down and flux core up. Can you give me some tips on the flux core. I have run a lot of flux core but never on such a small …

FCAW or GMAW of 4130 to 4130 Not rated yet
I need to weld 4130 to itself. The material is 30mm thick and I need a 10 mm fillet. Which process would be best and what would the preheat be? Will a …

flux core weld Not rated yet
can flux core welder weld steel tubing? for a roll cage? ---------------------------------------------------- there is no reason why flux core would …

help with flux core settings Not rated yet
what is the correct settings for welding 3/4" mild steel plate with 1/6" flux core wire ------------------------------------------------ depends mostly …

suitcase problem Not rated yet
put positive and negative leads on backwards on my suitcase and welded for a bit will this effect my welder negatively? ----------------------------------------------- …

Millermatic 210 running .045 dualsheild flux cored wire help Not rated yet
I am having trouble setting up my machine, mainly because for the volt adjustment there is only 5 settings, numbered 1,2,3,4,5. On the machine it doesnt …

about variables for welding Not rated yet
Hello I want to know how to use welding machine for Mig welding. I don't know how to set Amperage, Voltage and Wire feed speed. Diameter of wire is …

4g gmaw root pass Not rated yet
how do i keep from being concave on back of root weld ? -------------------------------------------------- For the most part, it boils …

Fluxed Cored Arc Welding Not rated yet
I am curious about the Fluxed Cored Arc Welding procedure. Actually, what is the usual step in doing the fluxed cored arc welding?? Any techniques?? Any …

kemppi minarc 180 adaptive Not rated yet
What is your opinion of the above machine for the weekend "extra cash" warrior? -------------------------------------------------- I have not welded …

Argon/co2 gas flow rate. Not rated yet
What is the recommended flow rate/pressure setting for 75% Argon/25% CO2 wth a Lincoln Weld Pak 100, and 025" steel wire when welding .045" thick steel? …

30 or 35 flux core ?? Not rated yet
I'M using a friends Clark ( harbor fright) mig. It said I could use 30 or 35 wire do I have to change anything? Or can I just run different size wire …

Aluminium MIG - Vertical & overhead advice. Not rated yet
Hi there, does anyone know how to MIG weld aluminium out of position? Do you run stringers as on the flat or can you weave it? What's the technique? …

Best 180 Amp MIG Welding Machine Not rated yet
What is the best 230 VAC 180 Amp MIG machine for the money? -------------------------------------------------- jody here... there are lots of options …

Why is my mig gun vibrating? Not rated yet
I mig weld for a job... I got a 10ft Tweco whip and a Miller 350 multiproccesor with a Miller wire feeder. When I am spray arcing thick material I will …

What is the formula for setting up GMAW ? Not rated yet
Does anyone know the formula for setting up a GMAW process, ie; wire speed (in/min) x voltage (V) = amperage (A) or something like that - it's been a …

Using the proper angle when welding overhead while the lap joint is curved  Not rated yet
Hello, I am working on a job where I am welding a 1/4 inch thick carbon steel lap joint overhead but the joint is curved up and about 20 feet long. …

1 inch thick structural plate welding test Not rated yet
what type of groove angle do i need for carbon steel 1 inch thick ? -------------------------------------------------- This 1 inch thick unlimited …

flux core and bare wire mig weldng techniques Not rated yet
Is welding vertical up and over head With dual shield wire the same as hard wire as in technique? -------------------------------------------------- …

Plates prep. to 3G Flux core wire Test Not rated yet
If I'm using .045 Flux core wire, How wide has to be my gap between the 1" plates? ------------------------------------------------- with a 1/4" …

Advice for 2g pipe test mig Not rated yet
I have a 2g pipe test coming up and need some advice. I have to weld the root pass with MIG and fill and cap with flux. Its an 8 inch pipe. I have a hard …

help finding a auto darking hood with graphics good for flux core Not rated yet
i am trying to find a custom hood that will stand out in the shop i work in. I love my hoods with the small flip lens but cant find any custom hoods …

16 gauge steel hard wire Not rated yet
How to weld 16 gauge steel with hard wire --------------------------------------------------- thats a wide open question but here goes... well the …

Whats with everyone wanting me to run hardwire verticle? Not rated yet
I have a coupon test later today, and the last 2 tests I have taken both wanted me to run hardwire vertical. I've been working the same job for 5 years …

how hot is to hot? Not rated yet
How hot is to hot with a mig welding with .45 hard wire when your welding anything from 1/4 to 1/2 inch flat,over head and down hill? --------------------------------- …

miller 251with 75/25 Not rated yet
What formula do i use to set the voltage and also the wire feed speed, i am learning the machine but i don't know how to adjust when i have to weld vertical, …

strong enough Not rated yet
I'm using a millermatic 200, my question is will the weld be strong enough to weld on 5/8" steel plate? ------------------------------------------------- …

flux core welding in the 3G position Not rated yet
when flux core welding in 3G position, what motion is used? -------------------------------------------------- a slight Z weave works tracing …

suggested setting for FCAW when welding carbon steel Not rated yet
What voltage and wire speed should I run when welding the following in all positions: 3/16", 3/8" and 1"? ------------------------------------------------- …

suggested setting for FCAW when welding carbon steel Not rated yet
What voltage should I run when welding the following in all positions: 3/16", 3/8" and 1"? ------------------------------------------------- there …

Under cut on Cap 2g bevel plate Not rated yet
Having trouble with undercut on the cap an a 2g bevel plate test what do i need to do --------------------------------------------------- generally, …

Help with flux core welding Not rated yet
We use flux core, as well as standard stick welding, for our industrial container repair shop. We are generally welding 1/8th mild steel. So, we are joining …

MIg Weld, CO2 Gas. Not rated yet
Can CO2 Gas be used on it's own without Argon added to weld ordinary steel? Would it make a poor weld? ---------------------------- Co2 is a very …

clarke welder arcs before starting to weld Not rated yet
Clarke 95 120V Flux Cored Wire Welder When I touch the wire to the metal I am going to weld on, the wire will arc and burn up. Welds great when pressing …

help with 3 questions on manual metal arc welding Not rated yet
in manual metal arc welding describe how the filler metal is delivered to the weld pool.how atmospheric contamination is prevented and how the heat source …

help with tig welder Not rated yet
I want to weld some lightweight metal fence brackets at right angles. Is a 115 volt tig welder available from Harbor Freight up to the job? -------------------------- …

bare wire mig and flux core .045" diameter--differences Not rated yet
how does flux core wire welding differ from regular .045 bare wire. -------------------------------------------------- Settings and techniques differ. …

Help w/generator requirements (have generac 7500E) Not rated yet
The Hobart 210 has voltage adjustments from 1-7. What does each number represent in volts? I just looked at the chart in the owners manual and it appears …

flux core for 16 guage? Not rated yet
I have a 110 welder from harbor freight and im wanting to weld some 16 gauge steel plate. What wire speed and high or low heat? -------------------------------------- …

mig vs stick Not rated yet
is mig harder or easier than stick welding? ---------------------------------------------------- most people will say mig is easier. for general …

help with metal core settings  Not rated yet
Hey just wondering a good setting for metal core horizontal and should I push or pull while welding in the horizontal position ? ----------------------------------- …

help with welding uphill with flux core on the outside corner of a box Not rated yet
When I run uphill on the outside corner on the box its like im too hot and i gouges out the metal it under cuts it real bad I've always welded stick and …

Learning how to weld Not rated yet
Is it hard to learn how to weld, I have a welding class at school and I just wanted to know if it was harder for a girl or boy to do it? Or is it the same, …

do I need argon for welding a dirt bike frame? Not rated yet
do I need argon for welding a dirt bike frame? --------------------------------------------------- For the best results? argon will help. but …

pits or slag in my root test plate Not rated yet
i have been practicing to take 3g test when i take my backing off and grind it down i see pits in my root pass.i cant tell if its slag orunder cut? i am …

esab 7100 dual shield  Not rated yet
Doing a horizontal fillet weld do I push or pull? -------------------------------------------------- its the age old question pulling typically …

FCAW Is Not GMAW Not rated yet
I really need help with passing A 3 Position FCAW (2,3,&4G(With Backin STrap) 1/2" Steel Plate (Angle ?) OverHead would really be my downfall, tried to …

DCEP for FCAW?? Not rated yet
I have a good arc and a great sound, but my welds are crispy and have a lot of pen. I don't feel good about the welds when I turn down the heat. Should …

mig welding problem  Not rated yet
while using a 1/6 wire to weld pass after pass my wire burns deep holes while welding vertical. what can i do to prevent this? -------------------------------------- …

flux core schedule 80 6g test Not rated yet
im doing a 6g test with 6010 root with hot pass and fill and cap with shelfshield flux core on schedule 80 2" pipe.what wire will work best. -------------------------- …

hobart 140 welder Not rated yet
bought a new hobart 140 came with guages can i weld aluminum with it out of box or what do i need to change. ---------------------------------------------------- …

252 miller voltage /wirespeed ????? Not rated yet
i am fairly new to mig welding.i have a 252 miller and my question is i am welding new 3/16 angle iron to 3/16 square tubing with .035 solid wire, 25/75 …

Help with gas flow settings Not rated yet
What are the gas flow parameters for 90/10 argon/co2 mix in GMAW. Using .052 @ upto 29 volts and 450 WFS ????? --------------------------------------------------- …

Controlling distortion and/or "racking" on MIGing moderately complex: frames or stands....ex: extra- heavy-duty aquarium stands.. --or- 86"x 54" single frame doors. Not rated yet
So far I've been using a great deal of caution at every step with good results. (I may have my own tips to contribute; who knows?) And..I have plenty …

X ray with mig Not rated yet
Can you pass x ray using a mig welder? -------------------------------------------------- yes , usually only in a fab shop type setting with consistent …

NR-233 setup Not rated yet
What are all the proper settings for a NR-233 on a 1 inch 3g weld test ---------------------------------------------------- here is a really …

s.s. frames Not rated yet
what would be the best process for welding a frame consisting 4x4"sq. tb. ,2x2" sq. tb.,up to 1" plates 304 ss solid wire or flux core? ------------------------------ …

6" schedule 80 mig root... setup and tecnique Not rated yet
6G 6" schedule 80 and mig downhill root. Kinda curious as to what you would set the gap and landing at and if you would weave from landing to landing or …

Best setting volts wire speed for 0.35 aluminum vertical 3/8 plate Not rated yet
I took a pre test for aluminum have pass did good I ve been welding for 14 yrs. Monday I have open butt 3 postions. Just wanna know some ideas on wire …

mig welding stainless Not rated yet
When mig welding stainless, 308 and/or 316, is color of any consequence? I know how important color is when tig welding stainless, but I haven't been …

Help with mig weld flat test Not rated yet
I am taking a mig test today at 2:00. Two 3/8 beveled plates 22.5 on both sides to make a 45 on top of a backing plate with a flat weld. Root pass, hot …

heat for setting flux core  Not rated yet
would like to know what heat i should run welding flux core 0.35 and 0.45 wire in overhead and vertical positions on 3/8 to 1/2 inch plate. -------------------------- …

What is the best way to weld 3g on two beveled pieces of steel tacked together? Not rated yet
What is the best way to weld 3g on two beveled pieces of steel tacked together? --------------------------------------------------- It the fit …

help with filler wire selection Not rated yet
can .035 solid wire filler be used to weld 1/2 plate and still pass aws code? --------------------------------------------------- IT is possible. …

help with ceramic back up tape  Not rated yet
what ceramic back up tape should be used with coreshield 6 ------------------------------------------------- any welders out there have any experience …

help with flux core settings Not rated yet
what gas replaces flux in MIG welding? ---------------------------------------------------- For most applications , its 75/25 argon/co2 straight …

overhead mig Not rated yet
whats the best technique for overhead welding? ------------------------------------------------ Coincidentally, I just did a video on this. video …

I am using a mig welder Not rated yet
I am using a mig welder to fix a broken exhaust bracket to reattach it to the frame. What setting should I use? ------------------------------------------------- …

MIG or FLUX core root pass Not rated yet
In a full pen welding when the back-gouging is not possible due to the the size of the part. Can I use flux core for the root pass or I have to consider …

Help with 035 flux core settings  Not rated yet
Pretty much new to mig. Decent rod and tig experience. Trying to run 035 flux core on a miller regency 250. 22a feeder. Yes, it I'd electrode negative. …

what does polarity do Not rated yet
On my Millermatic 115 you can reverse the polarity what is this feature used for ------------------------------------------------- bare wire mig …

what speed and voltage for open 3g ? Not rated yet
I'm in welding school and having a horrible time getting the weld puddle to go fill in and go up the weld before it burns through on my root pass I've …

overhead welding Not rated yet
It's a thermal arc welder and my problem is setting volts for overhead mig welding just wondering what im doing wrong. THANKS ----------------------------------------- …

help with fluxcore settings in 3g position using 1/16th wire Not rated yet
what is the best settings to use when welding fluxcore 1/16th wire in the 3g position? I am trying to take weld tests for these companies but I have really …

fluxcore hot pass and cap Not rated yet
I need some help on the correct angle of the tip of the nozzle on the fillet and manly the cap on a 6G test and how to best accomplish a good looking cap, …

Helping my brother keep a job! Not rated yet
Is there a chart for temperature settings and wire speed on 1/4 inch steel (overhead) for mig welding? My brother just got a job and although he has …

Help with 6g flux 2 1/2" pipe chill ring Not rated yet
What are the best or is the procedures for 6g 2 1/2 " pipe test with chill ring ??? ------------------------------------------------ i have never …

correct cfm for mig welding Not rated yet
I have been using flux core for many years and am new to Mig welding. Question on the gas. I'm using argon co2 and I am finding that the cfm is a question …

polarity  Not rated yet
can I change it on a century 90 amp 120 volt module 117 038 if the manual makes no mention of it? -------------------------------------------------- …

How to weld sq tube together and keep it square Not rated yet
I am trying to weld two pieces of 2 inch sq tube 1/8 thick, at a 90 % angle. I square them tack them and then weld. When I finish they are out of line. …

help whith aluminum/brons wire Not rated yet
where do you get it what can it be used on ? also can you use it in a long gun or do you have to use it in a spool gun ? And is it a fix all fore cast …

Up hill welding with flux core Not rated yet
I am going to have to take a 3G test for a job. I have not welded for a while and have never welded flux core uphill. I have been welding for a lot of …

help with mig and fluxcore settings Not rated yet
i just got out of school for welding and i forgot a few key things. i just needed to ask how many amps do i set for mig and fluxcore n what should the …

Welding Supplies In Guatemala??? Not rated yet
I am a TIG/MIG welder looking to get started in Guatemala. I just came here to Fronteras and don't know where to get any welding supplies or a machine. …

Shield gas regulator setting Not rated yet
Have a Handler 140. Have used for a year w/o gas. Purchased bottle and solid wire. What do I set the regulator at. Can't seem to find an answer online. …

Best settings and wire for Mig weld Not rated yet
I need to weld 1" sq. 14ga tube. I am using a lincoln 140c (120V) welder. What is the right wire and settings for this? --------------------------------------------- …

Mig welding in the 3G uphill. Not rated yet
I'm wanting to know what are the settings on a mig welding machine to get the best results for a 3G uphill position such as the heat and speed settings? …

At what angle does a weld become vertical Not rated yet
We are running a metal core wire and have a ramp to weld which is a 15.5 degree rise. At what degree does the position change? ---------------------------------------- …

Help with S.S. Fluxcore. Not rated yet
I just wondered if anyone has ever used and had any luck with 308L .045 ss fluxcore wire on SCH10 ss pipe? If so, could you please enlighten me as to the …

millermatic 251 settings for 3/4 in thick steel Not rated yet
using a millermatic 251 mig welder with .035 wire.Doing fillet welds and corner welds. I would like to do in one pass so that it looks nice. I can not …

help with uphill weave cap mig welding Not rated yet
I would like to know what is the best way to run an uphill weave pattern in mig welding.. ------------------------------------------------- Here …

welding a vertical plate Not rated yet
when welding a vertical plate test how do you weld the first pass? ------------------------------------------------ I use a slight motion that …

Fluxcore overhead settings? Not rated yet
What is a good setting for amps and wire speed for overhead fluxcore welding? I'm using .045 wire. ---------------------------------------------- …

flux core Not rated yet
help with flux core settings

test for .045 flux core on 3/4 inch plate mild steel Not rated yet
OK I have to take a welding test with .o45 flux core wire on a 3/4 inch thick plate and I'm wondering if anyone can show me the setup for the plates and …

vertical down Not rated yet
My machine welds perfect in horizontal but when I try vertical then it spatters. I have tried setting the speed and have installed a new torch. What could …

welder settings Not rated yet
what should i set the amperage and voltage at to reduce spatter when welding ------------------------------------------------- start with the settings …

buried arc wit hardwire/75-25 Not rated yet
deep penetration with very short arc I have seen it done by tank welders

help new flux core welder Not rated yet
hey i just bought a 120volt 90 amp harbor freight flux core wire welder not sure of the name but its blue and pretty popular 110 dollar welder, i used …

help with mig test welding Not rated yet
I have had a mig welding test before, but it's been several years and standards have changed along with different weld shops have different …

Wire Speed Setting Not rated yet
How do you set the right wire speed for the metal your welding? By thickness of metal or? -------------------------------------------------- Sean, …

help with 1g test,mig weld and metal core wire size- 1/16 Not rated yet
I'm taking a 1g test on half inch plate with circles and curves. it's mig with metal core and spray arc and wire thicker than 060 What steps do I take …

help with mig settings when welding half inch plate Not rated yet
im doing a bend test with gmaw. its 3g downhill open root on 1/2" plate and i need help with the settings. ------------------------------------------------- …

flux mig welder recommendation Not rated yet
I need to weld flat iron up to 1/4" thick for continued use(with short intermediate stops) for 1 hour+- without over heating the unit. What size (amp & …

Millermatic 211 or 212 Not rated yet
I'm about to purchase my first welder and have not done ANY welding before. I purchased a bunch of books/videos and plan on spending a ton of time on practice …

machine settings for 5g test with. 035 fluxcore wire  Not rated yet
Parameters for 1/4 inch pipe. 5g test with .035 fluxcore wire

arc and flux wire welding Not rated yet
what is the difference between arc and flux wire welding --------------------------------------------------- Usually when people say arc welding, …

how much power to run a mig Not rated yet
What size generator do I need to run a lincoln 180 mig welder -------------------------------------------------- not sure, the way to find out …

help with flux core settings Not rated yet
what heat should i run a hot pass and cap uphill on pipe with flux core? -------------------------------------------------- Sorry, but there is …

vertical uphill, techniques elaborated. Not rated yet
Need a more in depth explanation on vertical uphill short circuit mig. In the video it is easier said than done. ---------------------------------------------- …

2G GMAW Breakage Not rated yet
I have been attending Welding School Since June of this year, I am having trouble passing my 2G DT. I have made several attempts, PUSH and Pull Open Root …

stick/mig Not rated yet
i saw an add for a stick/mig machine , why both, and are they any good. thanks larry ps great site ------------------------------------------------- …

FCAW Welding Not rated yet
I want to know what kind of problems will be faced and solutions for it,with regard to the welding of thin structural steel plates by FCAW process. Length …

help with flux core setting Not rated yet
i work on heavy duty hobart mig welding machine but i got problem setting,please help me ------------------------------------------------ if you …

MIG Not rated yet
MIG -metal inert gas, so we want to use inert gas but some place co2 is using is it correct? --------------------------------------------------- …

MIG beginner needs advise on direction Not rated yet
Ok, I just started welding (MIG) and have tried a few different directional techniques. Which one should I use? The pictures below are the 2 ways I have …

what is fcaw in welding how does it differ from gmaw Not rated yet
what is fcaw in welding how does it differ from gmaw --------------------------------------------------- fcaw stands for flux cored arc welding …

NEW GMAW DOWN-HILL ROOT PROCESS Not rated yet
What wire feed speed and voltage should I use with the GMAW process to weld a root-pass in a schedule 80 pipe with .035 wire using the new GMAW down-hill …

Re; Is there differents between Metal Core and Flux Core Wires. Not rated yet
Is Metal Core Wire the same as flux core wire. -------------------------------------------------- yes there is a big difference. metal core is …

What is the advantage of spray transfer compared to globular transfer with Mig? Not rated yet
Today I finally played with spray transfer “other than welding Aluminum with my spool gun”. It was kind of fun and interesting; I was using 75/25 mix and …

What is the advantage of spray transfer compared to globular transfer with Mig? Not rated yet
Today I finally played with spray transfer “other than welding Aluminum with my spool gun”. It was kind of fun and interesting; I was using 75/25 mix and …

flux cored welding a 3G uphill  Not rated yet
What is the best way to hold the mig gun when FCAW up hill, so the toe of the weld will be even. Fabricating steel and stainless steel. ------------------------------ …

Volt & amp settings  Not rated yet
What is the best volt & amp settings for fluxcore & CO2 welding - 1.2 & 1.6 mm wire? try using this link http://www.millerwelds.com/resources/calculators/mig_soli …

Beginner questions Not rated yet
Sup guys, my name is Rossi. I'm an apprentice sheetmetal worker with easy questions. I just bought a Lincoln pack welder 125hd and I want to do projects …

Amp Setting Not rated yet
I have a Millermatic 175. The power levels are numbered 0 to 10 and labeled "Voltage" instead of amps. Is there a correlation between the numbers and …

weave width Not rated yet
maximum weld width with mig and flux core wires. ------------------------------------------------ Some codes spec out maximum bead widths but …

90 amp welder Not rated yet
can a 90 amp welder with 0.030'' wire weld 1 1/2 dia x .120 steel tubing to 3/16 plates --------------------------------------------------- barely. …

Line Porosity Not rated yet
While welding on 3/8 A-36 3G using NR 233 Flux Core Wire we were noticing every so often, small tracks on top of the weldment with occasional porosity. …

loss of penetration.  Not rated yet
Why does my welder miss while welding on gas the welds look like spatter with no penetration? ------------------------------------ make sure your …

help with co2 gas metal arc weld settings Not rated yet
Material: 12mm carbon steel (250 grade) Wire: 1.2mm Gas: 100% CO2 Position: Vertical up fillet Can you please help with weld settings, ie: ---------------------- …

has any one ever mixed helium and argon for aluminum mig welding and does it help? Not rated yet
CAN YOU MIX HELIUM AND ARGON FOR ALUMINUM MIG WELDING? yep

Good bead techniques using gasless Flux Cored Wire Not rated yet
How can I improve my bead appearance? I'm getting good penetration, now I want it to look good in appearance as well. ---------------------------------------------- …

Questions with Metal Core Welding Not rated yet
I have the designation of 492C-6M-H4. I am looking for the chemical analysis of this metal core wire? Rejean, just copy and paste this in your …

Mig troubleshooting for porosity Not rated yet
I'm having porosity no matter the settings on my machine. I've checked hoses, changed tips, been all over settings, etc. I'm not too experienced at mig; …

help with mig and fluxcore settings Not rated yet
i would like to know what heat to use running a mig 0.35 or fluxcore0.45 uphill on schedule 40 pipe also what heat should i use on the root running it …

G6 test Not rated yet
I will be taking my G6 Mig test as need to know how to run my beads or stringers.Also setting info would be nice. Been using stick techniques on other …

mig or flux core Not rated yet
What is the proper method of welding 3g vertical up 1" plate? Should I use a weave pattern or can I use stringer beads? ---------------------------------------------- …

welding Not rated yet
what type of 0.35 and 0.45 wires can i use on a 3/8 inch mild steel and what is the wire speed and voltage

flux core arc welding Not rated yet
what should be the wire speed and voltage for over head ____------------------------------------------- I like about 20 volts and 250 ipm with .035" …

help with 6g mig Not rated yet
Having to take a 6g GMAW test. Looking for tips and techniques. anyone got any tips???

setting .045 flux cored wire for uphill? Not rated yet
how do i set the voltage, wire, and gas for doing uphill vertical welds on half-inch thick steel? ------------------------------------------------- …

help with flux core settings Not rated yet
Need a chart with flux core (dual shield) amperage and wire feed settings, on different metal thicknesses. ballpark ranges will do, ill be able to fine …

welding cast steel Not rated yet
i broke the h-link on my trackhoe can it be welded with a 252 miller mig or should i use a stick welder ---------------------------------------------- …

flux core MIG welding Not rated yet
Need to know what tracing the puddle means? Thanks Brad ------------------------------------------------ when i make reference to "tracing the …

help with flux core welding Not rated yet
Do you just push your weld uphill while flux core welding or do you have to move it like you do if you was welding with a 6010 stick rod? Never MIGed and …

help with 1/2" carbon plate flux core test Not rated yet
I've got a 1/2" carbon plate test on Monday..I need some advice. I've never welded with a MIG welded that much..but I am SMAW Certified structural and …

splater with 0.30and 0.35 wire Not rated yet
I am just learning to weld and i an having aproblem with splatter on my work peace. please tell me what i need to do to remedy this problem. I do not …

help with flux- core settings Not rated yet
flat position 1 inch plate 3/32 wire what are correct settings ------------------------------------------------- it really depends on the wire you …

Amperage Not rated yet
How do you figure amps when all the power sources show is wire speed and volts? ------------------------------------------------- that my friend …

Max groove weld thickness for GMAW on stainless steel. Not rated yet
My boss wants me to weld 1 1/2" thick stainless with a single GTAW pass and weld out with GMAW .045 solid wire & Tri-Mix backing. I have always been told …

solid wire settings Not rated yet
what is a good setting for solid wire root run on 6g carbon pipe 17-18 volts .035 wire 210-250 ipm 1/8" gap , 1/16" land these setting are …

Help with flux cored? Not rated yet
Why is the use of a flux cored wire for an open pipe root weld not recommended? ------------------------------------------------- engineers. it …

controlling warp in 1/8" thick angle iron Not rated yet
I am building shelving supports out of 2" X 2" X 1/8" thick angle iron. I am taking a piece 6' long piece(vertical piece that will be bolted to the wall) …

hard to set wire speed Not rated yet
i have trouble to set proper wire speed. got good ground. 1/8 metal. with .035 solid wire and 75/25 gas.......no matter what i do it does not want to set …

wire speed Not rated yet
best way to set wire speed on compbell hausfeld wg3000/with gas thanks ------------------------------------------------- get some scrap …

help with 5/8's plate ,v-groove 1/8 landing hard wire test Not rated yet
i've taken a vertical , horizontal twice. I pushed and pulled the first two test . I'm hoping for a third test soon. I need any advice on this test!! …

Fitting new guages to bottles. Not rated yet
Hi, do i need to use a sealing tape like PTFE when attaching a set of new guages to a bottle of Argon. Or, do i just screw the guages on and make sure …

Dual Inductor mig Not rated yet
I have got a unimig 250 that has 2 earth lead connections. One is hi inductance & other is lower inductance. Mainly use hi one, have tried low one with …

help welding alum with mig Not rated yet
I have a Chicago electric Dual Mig 165 Model 93793, and I would like to weld alum. with it using a spool gun or something that would not cause a bird's …

More flux than metal! Not rated yet
Hi, Great site :-) I have a 160amp arc welder (stick welding) it is set to 70amps and i am using 1.6mm flux coated welding rods to weld 3mm steel box …

proper gas Not rated yet
Mig weld with .035 ER70S-6 wire.12Ga. to 1/2" carbon steel. What gas should I use? I've been using 100% argon, but in some of your video's I've heard you …

proper gas Not rated yet
Mig weld with .035 ER70S-6 wire.12Ga. to 1/2" carbon steel. What gas should I use? I've been using 100% argon, but in some of your video's I've heard you …

Gas welder Not rated yet
How do i know if my gas is working on my welder? --------------------------------------------------- if you are getting lots of wormholes and porosity, …

vetical up ,mig and G.m.a.w , flux core/ mild steel 3/8, 10mm.  Not rated yet
mig vertical up techniques basics

What does open table mean with flux core welding Not rated yet
What does open table flux core welding mean ? ------------------- Paul, never heard of that one before..anyone else out there care to weigh in? …

What would be good proper settings (sheild gas, volts, wire speed) for root, fill and cap on 8" steel pipe, DOWNHILL? Not rated yet
What would be good proper settings (shield gas, volts, wire speed) for root, fill and cap on 8" steel pipe, DOWNHILL? (Gotta go downhill in class. Have …

2g&3g Not rated yet
im taking a 2g and 3g test flux core/ceramic tape any tips on techniques for this test?

New to mig Not rated yet
So today I applied for a job at a foundry as a welder I have experience with stick welding but they had me do a plate test with a mig. I assume that …

mig down hand Not rated yet
I'm having trouble with my root pass penetrating any tips or suggestions would be helpful. plates are prepped at 30 degrees with lands and 3/16 opening …

how do i get a good cover pass using fcaw? Not rated yet
I'm welding overhead with fcaw tubular wire no gas. I'm having trouble with my cover pass. I can't get a good flat bead. -------------------------------------------- …

help with metal coreed welding settings Not rated yet
Hi, I am looking for information on metal cored welding techniques and machine settings. The wire thickness will be 045 and I am looking for information …

Wire Speed Changing Not rated yet
Hi everyone. Just 2 quick questions. Firstly is there a difference between a mag wire feed unit and a mig wire feed unit. I have a mag wire feed connected …

Welding voltage Chart Not rated yet
Just wondering would anyone have a good voltage welding chart. Getting frustrated at times with the mig welder. Maybe someone has a 1mm to 6mm welding …

can ferrous metals be welded with flux core Not rated yet
can ferrous metals be welded with flux core? ----------------------------------------------- yes, thats mostly what flux core is made for

MIG Welding 16 gauge exhaust tubing Not rated yet
I am MIG welding an exhaust system on a hot rod and want the welds to look pretty. I have the heat and the feed figured out and can make a good run. …

lap jjoints and continuous welds Not rated yet
two questions... do you have any tips on running continuous welds greater than 12" also on lap joints any hints on why the top edge is burned away and …

WELD PENETRATION Not rated yet
for 1 inch fillet what should be the weld penetration depth for MS material --------------------------------------------- anything past the root …

How to fix or hide an arc out of the bevel Not rated yet
My question is. Does anyone ave any tips to hiding or fixing an arc mark on pipe if you were to arc out of the bevel.

Flux core to weld 4130 .250 sheet... Not rated yet
Can you use e 70 flux core to weld 4130 sheet its .250 it's a 4 link bracket to be welded to 1.750 .120 wall mild steel tubing ---------------------------------------- …

Regulator pressure when welding on Aluminium? Not rated yet
I have a MillierMatic 211 and would like to know what is the regulator pressure setting when welding on Aluminium. Thanks ------------------------------------------- …

Penetration Not rated yet
How do you trust that you get full weld penetration every time? -------------------------------------------------- justin, you can never really …

unshielded setting MM252 .030 .035 Not rated yet
voltage and w/f settings for MM252 using fluxcore with no gas shielding --------------------------------------------------- It depends on the type …

operating manual Not rated yet
where can i ge a manual for my mig lincoln electric 100 pak welder????? please help. can't find mine tony, go to this link and type in your info, …

tips for stops and starts Not rated yet
any tips on blending the weld in on a stop/starts going to be doing a cwb test next week don't want to fail the test because of that. thanks jody …

Metal core arc welding Not rated yet
What shoudl be the flow rate of gas in Metal core arc welding for the electrode diameter of 1.6 mm? ------------------------------------------------ …

after welding for 1 min i stop and can not restart arc Not rated yet
when i first start welding flux i have no problem if i stop and check my work i can not start a arc for quite a while how come i have a 125 lincoln i …

Fluxcore with Aluminum? Not rated yet
Can you use flux core to weld aluminum? ------------------------------------------ Mitch,I have not heard of any aluminum flux core wires available …

vertical mig setting Not rated yet
wondering what kind of voltage and wire speed settings you would use on 3/8 vertical fillet weld tee or lap i'm currently using .035 solid wire. --------------------- …

3/8 lap joints Not rated yet
can you weld a 3/8 lap joint with .035 wire with no weaving if i have to weave what kind of motion thanks for the help.. ---------------------------------------------- …

Contact Tip Recess Not rated yet
Will my MIG welds improve in appearance if I use a nozzle that is flush with the contact tip? Would this set up be more prone to getting burnback? Thanks!!! …

need help with setting for a 1g pipe on roll out Not rated yet
I have a weld test on a 1g pipe on a rollout. The test is a mig root, filler and flux core cap. I would like to know what wire speed, volts and speed of …

base chart on voltage,wire speed, metal thickness Not rated yet
am looking for a reference chart for welding steel. ie: voltage,wire speed, & thickness of material. knowing that all machines, act different, just because …

mig welding Not rated yet
How can I MIG Weld a 3/8 inch plate using solid wire and pass the bend test? ------------------------------------------------- Thats a really broad …

Help with mig 75/25 mix settings Not rated yet
Hello, Im pretty new to welding, only been doing it for 8 months or so. Ive been using my friend's lincoln HD package mig welder for some time, but his …

help with work and travel angle Not rated yet
for the best weld and results, what should my work and travel angle be when using the FCAW method? ------------------------------------------------ …

welding 4130 Not rated yet
can you mig weld 4130 to 1010 mild steel? ------------------------------------------------ It can be done, but it is not recommended for critical …

gas settings Not rated yet
first Im doing body work with 16 ga. and 22 ga. steel. I have the 75ar and 25 c mixture. do i want to buy flux wire or solid wire and what thickness should …

Help with MIG flat fillet welds Not rated yet
Hey, I am going for my certification and I have to do a flat and vertical up fillet weld, any tips on how to make a passing weld? Thanks -------------------- …

what is proper way to apply anti splatter spray in mig welding Not rated yet
what is the proper way to aply anti-splatter spray, and how offen do you re-apply, and does Pam really work? ---------------------------------------------- …

Mig Pro 135 settings Not rated yet
What speed and volt should I set the welder on to weld 1/8" stainless steel? --------------------------------------------- http://www.millerwelds.com/resources/calc …

failed 1g mig test on a36 plate Not rated yet
I took the 1 g cert. test plate,one side bend passed one did not,weld pulled away from one side. do not understand why on practice plates the same issues …

which mixture of argon / CO2 should I use? Not rated yet
Just bought a small 125 mig welder. I will be welding 3/16" steel. Should I use 90/10 or 75/25 shielding gas? --------------------------------------------------- …

settings Not rated yet
what kind of voltage and wire speed would you use for 1/2 lap joint -------------------------------------------------- that is a wide open question …

help with mig root beed  Not rated yet
what would be the best way to run a mig root bead in 12" pipe .375-.500 wall,6G pos.? -------------------------------------------------- i would …

can you short circuit with flux core? Not rated yet
I'm curious to know if you can short circuit mode with gas shielded flux core or is it only used in the spray mode transfer. Also - if you MIG short …

vertical up butt joint Not rated yet
Hi there im new to the web site and found it helpful. just wondering if u have any tips for vertical up butt joint and t joint? im in school now and i …

Flux Core Welding Not rated yet
Flux core welding is this the same as mig welding,but without the gas,am looking at a new job and the weld test is a 2G and 3G flux core test,I have 25 …

single pass Not rated yet
what do they mean when they say welds 1/2 in a single pass is that in all joint and position, stringers or weave of some sorts i ask because i'm having …

flux core speed and amperage? Not rated yet
What is the proper speed and amperage for all positions on 1/4 to 3/4 inch plate while welding with 0.45 flux core? ------------------------------------------------- …

spatter Not rated yet
First off, let me tell you that I love this site! Thank You. Now for my question. What causes excessive amounts of weld spatter. I have a Miller 185 and …

Lincoln 115v letter settings Not rated yet
Is there a chart or a rule of thumb that converts the A B C D settings for speed and amperage settings on my Lincoln 110 MIG from letters on the dials …

flux core and gas Not rated yet
i still have a few rolls of flux core wire, (.035) can i use these with shielding gas? ------------------------------------------------- Mark, some …

THERE'S NO HELP FOR ME! Not rated yet
i have never felt that the knobs on a mig machine are intimidating either because i belong to the word's most exclusive club. the brotherhood of welding …

mig wire selection  Not rated yet
what would the procedure be to weld a 16 ga mild steel duct to a stainless steel kitchen hood? --------------------------------------------------- …

breaks Not rated yet
how often should you have a break if you do mig welding all day ----------------------------------------------- dan, thats a tough one. lately, …

Mig welding Not rated yet
What types of metal can a mig welder weld on? ------------------------------------------------- jody here from weldingtipsandtricks.com mainly …

CV adapter question Not rated yet
First off this site is very informative and i enjoy it. can you mig off an engine drive with a cv module at idle? The module makes constant voltage right?, …

flux core settings Not rated yet
I am in school welding with a miller 304 series, and my question is where can I find a welding calculator that will tell me what my wire speed and volts …

thinking vertical Not rated yet
This may sound odd. but can you start a vertical up weld from the top of work piece? Because at times i do,short strokes starting 1/4 inch from top of …

what kind of jobs are fcaw specific? Not rated yet
I'm new to the industry and am wanting to certifiy in FCAW but am unsure to what code standard. What kind of industry uses Fcaw more than Mig? ---------------------- …

MIG settings Not rated yet
I'm somewhat new to MIG welding and I'm concerned about my settings. Most of what I weld is 1/4" mild steel but involves flat, overhead, vertical down, …

hand spool on MIG Not rated yet
Can I fit a hand spool to a 100amp MIG (25% duty cycle) and weld aluminum? Or will I need a bigger welder?

pro mig 175 alluminum welding Not rated yet
wat is the recommended pressure setting for an argon tank. i have a teflon liner and everything else i need. i just need the pressure settings, thanks …

fcaw overhead Not rated yet
what are some settings for overhead fcaw with 75/25 gas ? ------------------------------------------------- It all depends on the size of the wire …

wrong regulator for gas bottle Not rated yet
outcome for wrong regulator for gas bottle

Suitcase extreme Not rated yet
We have three miller machines, the syncrowave 250 dx for the shop, a millermatic 135 for mostly migging mild steel and some basic stainless work. I just …

Open Butt Root Weld 2  Not rated yet
Its Horizontal Plate ------------------------------------------ I would recommend a 1/16 land filed or ground on the sharp part of the bevel. …

Open Butt Root Weld Not rated yet
I can't get my open butt root for nothing i'm running my wire speed at 175 and my amps at 15.5 i just can't get it for nothing any tips??? ---------------------------- …

can a 110 mig do the job?? Not rated yet
Hi, I have one of them cheep 115 mig. its a 130 asto moddle, im building a car frame out of 2x3 ms and its .080 and .120,, can this welder weld this and …

about mig Not rated yet
good day sir i do watch all the videos you sended to,sir can you send me some videos regarding 1g,2g,5g and 6g pipe mig welding techniques?thank you sir …

flux core and shield gas together Not rated yet
is it ok to use a shield gas with a flux core wire? ------------------ Allen, its ok, in fact there are several flux core wires designed to …

problems with stainless mig wire Not rated yet
i have problems welding stainless.045 flux while welding the wire acts up it seems as if i was welding cold then when i weld with regular steel .045 flux …

Gas Metal Arc Welding and Flux Cored Arc Welding Q&A MIG welding advice

Question

hello I’m after some advice as I’m in Finland i don’t fully understand their language. but in the next 2 weeks i have to do a test piece to obtain a EN ISO 287-1 with the MIG on uphill butt . have 2 plates about 300mm long 125mm wide and the plate thickness is 16mm.i was told to start with 2mm gap at bottom then going to 3mm. so what i want to know what is best root technique and capping run .all videos and info will be a great help thank you
Answer

If this is bare wire short circuit mig you are talking about, the best technique for the root is to use a slight land on the sharp edge of the bevel, …about 1.5mm. Hold a dead nuts straight gun angle and use a slight weave just enough to let the root flatten out. Or at least prevent a big crowned root. Subsequent passes should use a weave using a zig zag or slight rainbow arc where you trace the front edge of the puddle. Check with the test supervisor and read the procedure to make sure a weave is allowed. Some welding procedures limit the width of any weave. I would only weave about 20mm max anyway. If the bevel is wider than that just stack 2 or more narrower weave passes next to each other. I would guess the root would need about 17-18 volts and about 210 ipm of wire speed. That’s inches per minute . until now , I have been trying to give numbers in mm. Not sure if your machine will read ipm or what. But I am sure you are used to converting things. Good luck

Question

Question. I'm starting a welding business and seen your quote price for TIG is around a buck an inch. What would be the ball park for MIG welding process standard mild steel? Thanks
Answer

A ball park mig quote per linear inch of weld would be about 50 cents plus 50 cents per tack weld. That is for steel. And is just a way to quickly have an idea of what to quote. Of courser there are all kinds of other things that come into play like need for fixuring, or if its stainless sheet metal, need for shielding the back side, etc. But just for a down and dirty way of giving someone a preliminary price 50 cents per inch plus 50 cents per tack would get you in the ball park. Think about it …a 10 inch mig weld on a gusset would probably take about 4 tack welds. 4 + 5 = 9 bucks. The weld would probably take around 5 minutes start to finish even with tacking, aligning it straight, etc, If you can make 9 bucks in 5 minutes, that is around 108 bucks an hour if you could crank them out without ever coming up for air. But we know that’s not possible so…. By the time you figure in gases, filler wire, etc, along with down time for material handling and such, its more like half that per hour. Not too bad.

Question

Hello. I am a decent welder and self taught. Years ago I bought a Miller 250 MIG machine and had a bubble regulator and used cheap ass wire. But, I could weld anything with that machine and not have to spend all my time adjusting and readjusting to be able to weld. Now, I just bought a brand new 252 and I hate that machine with a passion. I spend more time adjusting then welding. I have called the vendor out twice and he finally said hey I will replace it with a new Lincoln 185. Now we all know that I paid a shit lot more for the 252, but the 185 has tabs/contacts instead of the pots. When I bought the 252 I thought I was getting a 250 with some upgrades. That being said, my brother is the only guy from Dallas to Midland that is certified to work on these machines. Here are some things that it is doing. It will weld about 6 inches and the n start popping, acts like the ground is bad. So I ground the area and then tacked the ground to the metal, no better. I can feel the wire pushing and jerking in my gun. I have bought the best wire money can buy, changed every type of tip and nozzle, changed the cog's from "V" to "U", adjusted the tension by rolling it out in my hand. Hell you name it, I've done it. My brother told me he has seen these machines that had been dropped and messed up the Inverter. In a last ditch attempt to tell you how poorly this machine runs, mind you it has those shitty standard regulator on it rather than the bubble, but I finished this 3 week job up with my 30 year old 200 amp Lincoln Cracker box. Rule of thumb, 'You want a wire machine_ MILLER... you want a rod machine-Lincoln. Was I wrong????? It has always worked for me before. Pipeliner-Rod. MIG-185,250,251,252. I ain't made a dime off this machine yet and the guys i bought it from are a good bunch of guys, but I am not impressed with how they have handled this. Hell they want me to load the machine up and bring it to them instead of bringing out some other machines for me to try out. I am the customer and I am the one out the $2,500.00. Can I get an Amen.....?
Answer

Amen!!! Ok we got that out of the way. I use old millermatic 250 mig machines along with 251 digitals and they are great. I know a guy who has a 252 and the readings are jumping around all the time. It welds ok but it makes me wonder if he is in for trouble. I would get the name of your district miller rep and ding on him. They should make this right. You may have to haul the machine, but it will be worth it if you get taken care of. I have a feeling we will all curse digital readout welding machine one day. I really like being able to see exact voltage and wire speed in ipm, but those old knobs lasted and lasted, and I never had trouble with them. The new inverter tig machines are kind of the same, great with lots of bells and whistles, but they don’t seem as tough as the old conventional transformer machines. Again. Amen brother, customer service is what I look for in a welding supply and if they fail the test, I move on.

Question

I really enjoy your videos, I have a question regarding 50/50 helium argon mix. Does it work as well on a MIG welding aluminum? (Millermatic 350p)


Answer

Thanks, yes it works for thick aluminum on mig as well. You would not want to use it on say 14 ga aluminum , but if you need to weld something thick like ¼”, it will help

Question

hi in about a week i will be taking 6gr welding test w/flux core .Could you please give me some tips on running a good root pass...
Answer

Wow, good luck with that. Of course the root pass is the same as without the restriction ring but the trick is repositioning your body so that you have a good line of sight to see what is going on. I would spend a lot of time with the machine turned off and with the gun in your hand, moving around the pipe and training your body to remember to reposition so that when you flip your helmet down and light up, you will remember how to move. Set the machine by the wps welding procedure specification and use a piece of scrap to check settings if you are allowed.

Question

I would like to start a small welding shop when I finish tech school. I found a Millermatic 350 MIG welder still in the box with all the accessories for $2,500.00. Is this a good price? Is this a wise way to spent my start up money or would you recommend a different/smaller model? Thank you.
Answer

That sounds like a great price. If you can afford it , jump on it. You will never regret it. Lots of welders regret buying a mig welder that is too small. Very few regret stepping up and getting a Cadillac. With that size welder, you can run .045 flux core with or without shielding gas, you can get some 90/10 or 95/5 argon/cO2 and use spray transfer for thick steel where speed and penetration is really important. Get it . that is not much money for something that can make you a lot of money. Not to mention the fact that its like money in the bank. I will bet you could use it for 5 years and actually make money if you decided to sell it.

Question

Hello..I have a Ironman 250 mig machine and just purchased a spoolgun 3545. The problem is that the gas continues to run when the trigger is not pulled. Is there a flow control that I missed when I was hooking it up ? or does all the gas run all of the time ?? seems like a waste. by the way, the MIG gun and gas works great for gas control, it just doesn't work that way with the spoolgun. What gives ???
Answer

I just did some searching and found the pdf for that mig spool gun.. http://www.hobartwelders.com/pdf/spec_sheets/Spool_Guns_3035-20_3545-20.pdf

I don’t know what your problem is , but it is not supposed to be that way. The gas should only flow when the trigger is pulled. I would call Hobart at: 1-800-332-3281 (for Technical Service & Warranty) and try to get a new gun or get a new gas solenoid for the gun.

Question

A little background, I have 26 years of welding experience. I completed a pipe welding course in 1983. I have been doing pipe and structural since, everything from stick, MIG, TIG, and flux core. I have tested and certified in all of these, bend tests, magna flux to x-rays, flat to horizontal, overhead, 90 degrees vertical, E6010, 7018 and stainless. I recently took a 3G flux core test. The machine heat and wire were preset and I was told to not touch them. The plate was an inch thick and maybe at an 80 degree angle and the wire I believe was .035. I believe the amp setting was at 160 amps. I could not make out wire speed. Since I had no say on the setting I did not concern myself with the settings. I did ask if I could practice on a separate plate and was given the go ahead. Before I started the test they said no weaving. If you weave you will bust out. I was told that they wanted the weld to look like smooth toothpaste squeezed out of the tube. I have done that weld on a flat surface but never uphill. My root pass second and third passes were pretty flat and the flux peeled off of them. So the setting was okay, as far as heat and wire speed. The groove helped in supporting the welds. My other passes instead of lying flat, got thin and had high ridges in the middle. Somebody came by and told me that the best thing to do was to grind them down and start over. I did that several times and the only way to flatten them was to cheat and make tiny weaves. I was still grinding them down. On one of the passes with no weaving, I got ridges again and that is when the inspector came by and said that I was not going to pass the visual test. As far as he was concerned I had already failed the test. I told him I was grinding the welds and he said it did not matter as far as he was concerned I was leaving slag inside my welds. I did not have issues with slag. I could just buff it off. Then he went on to tell me I could have welded on a 44 degree angle. Go figure. I would have had a snowball chance in hell. As I said before, I have taken this test several times and have passed with weaving. Here is my question. Can you tell me what is the procedure on a G3 uphill flux core with no weaving even on the caps (the caps being no more than 1/8” high) and pass the bend and x-ray test? Can it be done?
Answer

Some things never change. Engineers are always trying to discourage weaving because of stress and heat input. They don’t realize that in the field, welders are going to weave. At least enough to make the passes flat enough not to trap slag at the toes of the weld pass. I have done a bit of experimenting with flux core lately and here are some things I have learned. If you keep gun angle, stickout, and travel speed right, it is possible to run stringers that are not crowned too badly. The trouble is if you stack the second to the last stringer too close to the plate or pipe wall, you will have to grind in order to avoid trapping slag. When you can weave a little bit, its good to leave plenty of space for that last pass. But if you just plain are not allowed, then the beads have to be stacked just right. And in a weld test situation, that is a crap shoot. Sorry about you busting the test. I am not sure where the test inspector was coming from, you would like to think he had his reasons, but I have come across a few who were dicks.

Question

I have a Miller 251 MIG welder. I am having a problem with an air bubble forming in my bead just as I pull the tip away. Suggestions?
Answer

Sounds like either….not enough gas flow, or possible paint , oil or rust on the metal. Make sure the tip is not clogged with spatter too.

Question

hey man great site, you have a lot of tips for GMAW solid wire, how about a few more tips on industry related stuff like overhead welding with FCAW?.... mainly because that's what I'm having trouble with, hey thanks
Answer

Thanks for the tip…working on it. Just ran some flat fillet weld break tests to compare with flux core with bare wire mig. Might as well throw some overhead in there too.

Question

I was wondering if you could give me some analysis on my welds vs. another welder. I have been MIG welding for about 9 years now, i have been TIG welding for about 3-4.

I have a great passion for metal working especial when i can do a welding project and then sit back and take some pride in knowing i just built that and not everyone can do it!. The other person that I’m comparing my welds to has been welding for about 20 years, but it’s always been just a job to him he doesn’t own a welder and do any home/side projects.

Not that, that makes him a bad person just saying. Anyways here are the links to some pics, when i cut the welds in half in a band saw i could see the penetration area.. so if you could help with how i can get that to show.

Ok, here is a link to his welds http://i138.photobucket.com/albums/q261/jlaudio29/IMG_0912.jpg

He does sorts the pause, let puddle build, then move forward a little, rinse repeat.

Here is my weld: http://i138.photobucket.com/albums/q261/jlaudio29/IMG_0899.jpg

I constantly move forward and weave slightly and my movement forward is at a slow steady pace. any insight you can give me would be great. few comments me and the other welder exchange.. he stated that he felt that if the weld was a little more concaved that he feels it penetrated more because more of the filler went into the metal.. he feels that my type of welds are colder.

Now keep in mind the welder was on the same setting when we both did the welds. here is the cut away view which isn’t very good at all. i suck at taking pictures of welds apparently

http://i138.photobucket.com/albums/q261/jlaudio29/IMG_0916.jpg

His welds are on the outer left and right and mine are on the inner left and right. Please let me know what you think.. Oh also this was using 75/25 argon/co2, he prefers to use 98/2 argon/oxygen. If you could give me some thoughts on that as well. Thanks a bunch!!!

Answer

Ok this isn’t going to settle any arguments but here are my observations… It appears that you pull, he pushes. That is the biggest reason his welds are flat and yours are kind of crowned. Of course technique makes a difference too. He is getting more spatter, again from pushing.

Honestly , I have to say I thing yours are slightly better. More throat. If you measure the cross section of weld on both , I bet the welds with the convex face are a good bit thicker and therefore will be stronger.

Other than that , its like art. Some people will like his welds better , some will like yours. If neither one of you is having failures, drive on.

If you really want to have a contest, both of you weld only one side and only about 3 inches. Then break it with a big hammer and inspect the root to see who penetrated and who didn’t and who’s weld takes more force to break.

Question

First off, THANK YOU!!! for sharing your experience and knowledge about welding. I bought a Craftsman welder about 10 years ago. I've been welding with flux-core up until today, when I finally broke-down and bought a 75/25 #1 tank, and when I attempted to loosen a nut on the polarity jumper, the bolt snapped off. Sears does not have this part anymore so I either try to repair it, or cross-reference it with another brand??? Any advice you could give me on how to fix this would be much appreciated? BTW: I WAS able to order a new liner and did so - I would not have thought of that until??? Thank you

Answer

You may need to drill and tap and put a set screw thru another piece of all thread…and then be careful no to break it anymore.

Question

Hi, I am going to be stick welding and am a newbie. I saw that you recommended the Northern Industrial Solar-Powered Auto-Darkening Welding Helmet. Do you think it would be worth the extra $50 to buy the one with the bigger view (Northern Industrial TECMEN Large-View ADF Welding Helmet — 92mm x 62mm View, Model# ADF750S)? It looks like it has about the same specs as the $50 helmet, but with a bigger view. Just wondering how much of a difference a bigger view area makes. Thanks,


Answer I cant really vouch for the larger viewing area helmet, I have only tried the one for around 50 bucks. I don’t know that it will make much difference to you. I found the viewing area on mine to be just fine.

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