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  #41  
Old 07-19-2014, 01:17 PM
crystallographic crystallographic is offline
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Originally Posted by MP&C View Post
This evening I tried some more Fusion welding using the Tig.. To review my previous attempt:
When using the Tig torch on that pass, I had set the amperage, mashed the pedal, and used the speed of the pass to control the heat. The slight undercut in the center is likely due to the fact that I made a straight run from one end to the other. I wanted to try this again, giving the torch a circular motion to see if it helped. Here's our sample pieces..

snip

This was bent approx. 150 to 160 degrees and the weld held..



I definitely need more practice to build up my "comfort level" with using this process, but sure beats all that grinding!
Bravo! and welcome to the next level, Robert.
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  #42  
Old 07-21-2014, 03:22 AM
Oldnek Oldnek is offline
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Just a question Robert,

Wouldn't turning your tig down help with distortion reduction, cause you chipped your shield cup you can get real close, so if by turning down your clean width or pulse width, would that not help the heat build up.

Maybe thinking this wrong, but that's why I'm here.
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  #43  
Old 07-21-2014, 05:41 AM
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MP&C MP&C is offline
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Given the considerable undercutting, more than anything I think I was there too long. I was trying to get rid of the narrow "trough" at the center of the bead from my first attempt.
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