Rockers and floors

[AustinDube]

I have a little mig 195a 220v welder and theres settings high-low and 1-2 for heat and the wire feed 1-10. I dont want to melt through so low and 1 and 5-6 for the wire feed or?

 

[1987 GMC Jimmy]

@foamypirate @crazy4offroad

 

[crazy4offroad]

I would start with "low" and 1, and 3-4 for wire speed. Wire speed affects heat in the way, slow is hotter than fast. Slow gives more arc and fast gives more wire keeping it cooler. You want that sound of frying bacon and good penetration, not just gobs of wire sitting on top of your panels. Also since it's panels you're working on you'll want to hit a spot for just 2-3 seconds, then move to a different spot at least 8" away and hit that spot for 2-3 seconds. If you tried to just run a seam weld you'll warp the panel, build too much heat and blow it out, etc.

 

[theblindchicken]

Yeah, keep the amps low, then adjust the wire speed. You want to hear that sizzling bacon.

For the wire speed, too low will make it burn through. Too fast and you'll notice the wire is pushing the tip away from the material. You want it to be consistently arcing. Keep the tip right about 1/4-3/8" away from the puddle too.

With thin panels you only want to do spot welds. Full beads will warp the panels considerably.

I've got a lincoln 140amp 120v welder using 0.035" fluxcore wire. For reference, I tend to have my machine set to A or B amps, then wire speed is around 2-4 when welding 16 gauge or 1/32 steel.

 

[Camar068]

Good info, thanks guys