Got an automotive project where I need to butt weld .060 stainless tube. Have some new scrap at work i have been practicing on. 50 amps inverter machine .040 T .045 F welding small sections at a time say 1/4 to 3/8" at a time skipping around I still see on the inside of the tube where the weld drops in at a very minimal amount. This is for exhaust on a turbo application will the small puddle drop effect flow that much? i am set up to back purge the stainless but haven't due to I am trying to get heat under control and it is practice.All input needed please sorry don't have a way to post pics. I get a nice stack of dimes just more concerned of the puddle drop and weather it is really an issue.
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