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Pipe Welding

Posted: Mon Nov 20, 2017 2:09 pm
by Amc2016
I'm working on 6g schedule 40 then I get to the cap and I'm using 1/8 7018 drag 2 pass cap at 110 amps going from bottom up on both sides and I'm getting undercut on the toes it looks like Underhill but the hot pass is nearly flush before I started the cap is it running too hot or I'm I going too slow?

Re: Pipe Welding

Posted: Tue Nov 21, 2017 9:02 am
by Mike
Welcome to the forum.

Re: Pipe Welding

Posted: Wed Nov 22, 2017 12:54 am
by Poland308
Welcome. What diameter pipe? Can you use 3/32 for the cap? Are you letting it cool enough before you start your cap?