Quote:
Originally Posted by JamesCH95
Very nice!
I would suggest two things (as someone who has earned certs in aluminum and steel TIG):
1) 50/50 Ar/He gas is wonderful, especially for welding thicker aluminum sections. The added heat transfer from helium allows you to weld thicker material at lower currents as well as run higher currents on smaller electrodes. Welding thin sections also benefits from 50/50 as well.
2) Toss the pure tungsten, it is pure garbage. I know it's 'old school' to use pure tungsten, but it's simply not as good as alloyed tungsten in current capacity or arc stability. A zirconated (yellow) or E3 (purple) tungsten will hold a point under load, resulting in better arc control, and the end will never melt and fall into the weld pool.
Otherwise, keep up the good work!
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Thanks for the advice! I'd love to give Ar/He mix a try. We have a bunch of pure electrodes, so I figured I would use those up before getting something nicer.