The only welder I have is an oxy-acetylene rig, and two weeks ago I needed to rent an arc welder. The place I normally go had rented all their units so I decided to rent one of the Lincoln wire-feed units Home Depot has out of curiosity (.030 or .035 size internal flux wire). Once I got the feel for it and got the feed rate and amperage balanced, the thing did a surprisingly good job...particularly for a 120 volt unit. Good penetration. I used a multi-pass approach One piece was 3/16 inch and the other was a bit thicker than 5/16 inch.
