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Posted by Chriscase [76.221.178.184] on Friday, September 25, 2009 at 00:19:24 :
In Reply to: Re: Porous welds posted by David Sherman [24.32.202.83] on Thursday, September 24, 2009 at 23:42:04 :
I don't know from t45, but I think 1/16 would do for 1/8 material.
I just lately read a rule of thumb for arc welding, rod diameter is 30% of material? or somethin. I lernt sumthin new this year, slipped my mind already.
Anyways, grind off the paint, use a neutral flame. That's a three-part flame. Look that up on the net. Too much oxygen burns the steel, to little adds carbon.