G'day all,
I've been oxy welding for some years (home fabrication and body repair) and have just bought my first MIG - it is a 220 amp unit. I read the various "how to" sections on this site over the last day or two.
On the weekend I commenced my first MIG project using 40x40x3 equal angle to fabricate a new work bench. I butted the plates together with no gap, and found that what seems to be the best setting on my machine (100A) for 3mm plate was not getting the penetration that I wanted, and also was resulting in a high profile weld on the top.
I tried a few different techniques, and played with the wire feed setting but still am not happy with teh penetration that I was getting. Should I have set this up with a 2mm gap between the plates, or is there something else I should be considering? I was using a bit of a zig zag motion to try and keep the heat in the weld pool and move it along.
Any comments gladly received.
Cheers,
TheOoz
I've been oxy welding for some years (home fabrication and body repair) and have just bought my first MIG - it is a 220 amp unit. I read the various "how to" sections on this site over the last day or two.
On the weekend I commenced my first MIG project using 40x40x3 equal angle to fabricate a new work bench. I butted the plates together with no gap, and found that what seems to be the best setting on my machine (100A) for 3mm plate was not getting the penetration that I wanted, and also was resulting in a high profile weld on the top.
I tried a few different techniques, and played with the wire feed setting but still am not happy with teh penetration that I was getting. Should I have set this up with a 2mm gap between the plates, or is there something else I should be considering? I was using a bit of a zig zag motion to try and keep the heat in the weld pool and move it along.
Any comments gladly received.
Cheers,
TheOoz