- Good Post Points
- Arc GMAW, spot, oxy, propane, silver solder
I'm in at the deep end here, I think, but there seem to be a lot of technicality here, which i wonder about. Stick welders, as very likely other types - are best considered by the amperage available and most, if not all, have this clearly shown on their control panels. I do have a generator/welder setup and its 'type' (other than it's a stick welder) has never been really relevant: what matters is how many amps it'll pump out. Mine has 200A max and it is driven by a Kubota 13HP petrol engine and is most capable. It's on a frame which I can pick up with my tractor jib on the linkage. I've run 4mm (.157") rods and welds have been most satisfactory and in fact 200A was a bit of overkill. Some of the work was on a bobcat bucket, other work on excavator bucket edges, to name just a few jobs. Those needed heavy overlaid beads. I've seen a few words about light channel and angle steel and personally, i wouldn't go far beyond 140A, with 3.2mm (1/8") rods and then, I'd be watching very carefully so as not to burn too many holes! And I've noticed some discussion about welding gal sections and with, say, a bandsaw cut and enough amps, the arc will burn the gal off. Just keep your head out of the fumes.