Finishing your weld?

[Mathius]

What alloy wire?

ER70s-6

I started thinking.. could shielding gas effect weld hardness? I don't use the typical 75/20 mix that's recommended for this wire. In school, we ran 100% argon on half the stuff in the class, because they could switch it over to aluminum easily. I started doing the same at home for the same reason.

I wonder if I'd get better results with 75/20 mix?

Mathius

[Ricoch3T]

I use the 75/20 mix and the weld still seems pretty hard to me. I've never gone straight argon tho so I can't really compare. I can knock a normal size bead down pretty quick with the 4" grinder. The ones that take longer are the bigger gaps I've had to fill in some what.

Also to get off topic a little, are you pushing aluminum wire with your lincoln? I read somewhere the push type of welders don't work very well with aluminum

ER70s-6

I started thinking.. could shielding gas effect weld hardness? I don't use the typical 75/20 mix that's recommended for this wire. In school, we ran 100% argon on half the stuff in the class, because they could switch it over to aluminum easily. I started doing the same at home for the same reason.

I wonder if I'd get better results with 75/20 mix?

Mathius

[Mathius]

I use the 75/20 mix and the weld still seems pretty hard to me. I've never gone straight argon tho so I can't really compare. I can knock a normal size bead down pretty quick with the 4" grinder. The ones that take longer are the bigger gaps I've had to fill in some what.

Also to get off topic a little, are you pushing aluminum wire with your lincoln? I read somewhere the push type of welders don't work very well with aluminum

No, they advertise you can use aluminum with this welder, but I can't imagine it would work on anything thick enough for me to care about. The machine advertises it will do up to 1/4" steel with regular wire, and 5/16" steel with flux core.

I'm pretty sceptible about those numbers, being that this is just a 110 unit.

But when I need to run aluminum, I pack up the argon bottle and run over to my buddies and use his big miller 220v with the spool gun.

Once this heat breaks, probably over the weekend, I'll be out there finishing up my inner fender, and I'll try to post some pictures of what I'm dealing with.

It's supposed to hit 93 degrees today, and 90 tommorrow, then rain Wed. and back to the mid 80s.

Mathius

[B Schein]

It takes a long time to learn how to but weld patches with little to no distortion as well as have the appearance that it was never fixed. I can do it if I take my time but it has taken me ten years of working on my own cars as well as worked at a professional hot rod shop. The trick is to tig weld them. When you tig weld the weld is much softer then a mig weld which allows you to hammer the weld. That is the real trick when you are able to hammer the weld any distortion that accurse do the heat and any miss alignment can be worked out. Al so when you tig weld it the weld is much less to grind off. If you have some thing that you are welding and can be planish you can get an almost perfectly seamless weld. You also need to pay attention when you are grinding not to stay on one spot to long or dig the wheel you need to keep the wheel as flat as possible to the panel to avoid grinding one spot to long. You also need to be patient it takes along time to do this don’t expect to weld the whole thing in five minutes and get that type of finish.