Quote:
Originally Posted by Ketzer
I've been at this off and on for several months and just not making headway. Too much heat or too slow speed or just poor technique. I went over and got some hands on lessons on a buddies machine (similar to mine just his is older) and right out of the gate I was getting nice welds, good penetration, etc. I have been afraid to blame my machine because I acknowledge being a beginner. Turns out my machine may have an issue.
Jeff-
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That's interesting. Wouldn't it pee you off if all this time you thought you stunk and it's the machine!
There's some good info videos about the correlation between travel speed and heat. Most "newbs" automatically think they should turn the heat down and slow their travel speed…. and that actually puts more heat into the piece.
The "masters" (which is NOT ME) can crank the heat up and pick their travel speed up and have a far smaller HAZ (heat affected zone). I've done this - and it works - but you have to have mastered the torch and fill pretty well in order to pick up the speed.