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Welding question


jhaag

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I think I know the answer but I wanted to check with experienced welders to make sure.

As I get ready to build some headers, I am thinking that I would like to tack the pipes together (making sure the joint is very close--no gaps) myself but then take it to someone who could TIG weld it. So far, my MIG welds seem to be strong but I'm not too thrilled with their beauty. Of course, practice makes perfect so I will get better at this, but for headers, I really want the welds to look nice, as well as be strong. So, would having MIG tack welds interfere with a TIG weld? I don't think it would interfere, but......

 

Thanks!

 

John

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Guest Jasonv8z

The TIG will remelt any filler you put down with the MIG. As long as your tacks are small, you won't notice anything. I'm in the process of making LT1 headers for my 280zx right now. The passenger's side is now done, but it took a very long time, mostly in routing the tubes properly, and holding everything in place to be welded.

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