Thread: 55 Wagon Progress

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Originally Posted by firebird77clone

I don't see much warpage, nice. How would you rate it against TIG?

Where the gas torch really shines is when joining aluminum panels for coach work... A TIG will give you a nice weld on aluminum but the back side will most likely need a weld pass as well, which is not always accessible. The gas torch when welding aluminum will give a good weld bead on both sides.

I do think the TIG is going to be slightly harder of a weld than the gas torch, but either is going to be better than MIG on sheet metal. The start and stop of any weld is where the most distortion (puckers) is added to the panel, so either TIG or O/A with a no-fill fusion weld will give the optimal weld with the least amount of distortion. The gas torch may have the advantage in areas that are cumbersome to use the TIG pedal.



I was asked to bend the weld sample to a complete 180* to give the weld a "REAL" test. So the following video does such, please excuse the erratic movement of the camera operator, he also had to close the vise and position the sample..





https://www.youtube.com/watch?v=JzfL...ature=youtu.be


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