[zupta82]

Hello everyone !!

I’m practicing on some 1/8 scrap mild steel. I am using my 180 mig welder with 0.30 wire, 35 on my flow meter 75/25 gas

I am planning to use this welder for a truck frame repair down the road. I tried going vertical uphill with a 45 degree angle and going in a repeated v-pattern and seemed to get a lot of undercut. I went downhill and the undercut went away, however I don’t think I’m getting a lot of penetration in both welds . Here are some pics, I would greatly appreciate some help

[Bucksfab88]

I would turn your gas down to 25CFH and also when your going up hill run your gun at a 30 degree angle up and I always do a circle up but that’s just me. What is your wire speed and heat at?


Jeremy Council
Buckwild Fabrications
Lincoln 350MP
Lincoln square wave
Lincoln 210 MP
Lincoln 4800

[Louie1961]

I would use a straight in angle on the gun and pause more on the sides. Spend much less time in the middle.

[Oscar]

Please post WFS, voltage, and picture of actual mig gun orientation. Therein will most likely lie the issue.

[snoeproe]

Vertical up mig sucks. I prefer to run vertical mig down and space (gap) my pieces to allow more or penetration if it needs it.
Flux cor for vertical up for me.