primeweld tig225x banner 2

252 miller voltage /wirespeed ?????

by chris conway
(topeka kansas)

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 argon and went off the miller settings chart 18.4 volts and 265 wirespeed and was making nice welds but how do i know if the penetration was good enough? thanks chris


The miller settings are usually pretty good and pretty hot too. I usually have to trim their wire speed recommended setting back a bit.

the only way to be sure about penetration is to weld a scrap joint and cut it , polish it, and etch to see the depth of penetration.

another down and dirty way is to set up a lap or tee joint and break it in a vise to inspect penetration.

Click here to post comments

Return to mig fcaw forum.

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.