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banzaitoyota 06-09-2004 08:40 AM

Undercutting of Metal while TIG welding
I was practicing T-joints last night on 16 GA Sheetmetal last night. I an undercutting the backside of the upright piece. Am I running to hot?

Fla Jim 06-09-2004 08:44 AM

Possibly, or increase your speed a little. What size filler are you using?
Can you send a photo?

arcdawg 06-09-2004 11:18 AM

you might not be angleing the torch the right way ( to much heat on one side)

didnt you just start tigging ?

give it time man........and save these pieces (i have a cigar box full)


Markopolo 06-09-2004 11:37 PM

Banza...while I'm not a t.i.g. weldor....I've read enough books to know that gas welding is pretty similar. T joints and lap joints are called "fillet".
I was thinking the other night, and a thought occured to me...."fillet" rhymes with "FILL IT".....In other words, don't be shy with the filler rod !
I went out to the shop to experiment, and sure really gotta' pour the rod to 'er.....fill that puppy up ! And don't slack off on the heat !....with all that steel going in to fill that need to stoke it !
DISCLAIMER: I'm not a Pro.....this is just MY opinion !

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