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Heat Rises and preheats your next bead

by geezer
(Canada)

I'm no welder by any stretch, but common sense tells me that your up hill method is better/has more pen. than a down hill weld cause the heat is traveling up and preheating ahead of you better than it would on down hill travel.

You could prove that out by quickly appling a torch to the middle of a vertical plate and measure the temp. diff. top & bottom.

My guess is the bottom will be cooler.

I enjoy your vid's and hope you make more of them.

Return to mig welding techniques.

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