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WM Blitz Video #12 115 Volt MIG 2F Corner Joint - PrimeWeld MIG180

Material type and thickness was 1018 steel 11ga  .120" (3mm)

18.1 volts 149ipm using .035" ER70S6 wire, C25 gas at 25cfh

This is a 2f position horizontal corner joint.

It is only slightly different than a 1F flat position and certainly no more difficult.

In fact, I find it a bit easier just because it's more comfortable for me.

I am willing to bet that some comments on youtube will tell me things like

"you should always push with mig".

I think saying "Always" is a pretty strong stance to take when it comes to welding.

I like to test welds by the cross section method to see the depth of penetration.

I have probably tested more than 100 mig welds using both pulling and pushing angles and am confident in saying both work fine if you avoid steep angles.

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Comments

Roderick Salter - August 28, 2023

Thanks Jody for these MIG vids. I learn a lot from them. MIG is the only welding I do. Don’t have the gear for the other types. Welding can be frustrating and tricky but when you do a good weld you really feel good about it! Watching your vids over the last few years has really helped—you know what you are talking about!

In my very early attempts I was using a different gas combo to the 25/75 as here in AU they recommended using a mix called Argo Shied for steel thicknesses up to 1/8 thick (3mm). It has 93%argon. 5% CO3, 2% O3. Here, the 25/75, is only available it the largest size cylinders. Way too big for my requirements at home. In the end I used 18/82 from memory.

Here for some strange reason they make different ratios for different thicknesses of material. For you guys, it seems 25/75 is pretty well universal for any thickness of mild steel. I got better results when it switched to the 18/82 ratio of CO2 to Ar.

Have never understood why they recommend different ratios for different thicknesses of steel here in AU.

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