17 years ago
welding and go to the lab. The instructor comes around from time to
time and offers suggestions... no demos, unless maybe you ask.
Doing some lap joints on CS HR 16 gauge plate, 3/32 tungsten,with
filler he said 80 amps... I finally found out that it should be 1 amp
per .001 thickness. Anyway I kept having trouble at class and since I
also have a machine at home I get to practice. I now at home, have it
set at 65 amps and using a very sharp tungsten grind I can get some
really nice looking welds.
At home I also grind off the mill scale with a flap disk, at class
instructor never seemed to indicate cleaning of oil or grinding was
needed. I think I read on here or elsewhere this was needed and along
with wiping down the welding rod with acetone. Am I right or wrong??
BTW When I was MIG welding aluminum (at home) I used a stainless
steel wire brush and acetone to clean off the plate... welds looked
Comments Please. B.G.