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Header flange welding

Posted: Sun Mar 15, 2015 4:37 pm
by Hollywood1
First attempt at welding a header flange to stainless tubing. Any pointers on how much heat . 3/8 flange to .065 tubing.
Thanks John.

Re: Header flange welding

Posted: Sun Mar 15, 2015 6:24 pm
by Otto Nobedder
Hi, John,

I'll move this to the TIG forum...

Nice weld, BTW!

Steve S

Re: Header flange welding

Posted: Sun Mar 15, 2015 6:39 pm
by Rick_H
Looks good... I usually run some small 1/2" or so stitches on the outside and fully weld and polish out the inside.

I do quite a few sets of headers, turbo and an or blower it is very hard to not have a stainless flange warp. I made a jig out of thick alum to bolt the header down to then weld the stubs (beginning pieces of the header tubes). This helps a great deal, I pulse the inner with 60-100 pulses, 60amps and use .035" filler rod.

Preheating the flanges can help so you can keep the amps lower as you weld. I have found at times you still have the face the flanges after welding.

Re: Header flange welding

Posted: Sun Mar 15, 2015 6:51 pm
by Hollywood1
Thanks Steve and Rick! Learning more each day. Very happy I joined the forum.

Re: Header flange welding

Posted: Sun Mar 15, 2015 11:28 pm
by Hollywood1
Rick are you just stiching in four places? What settings on welder for the stiching? Thanks for all the help. John