Is it possible? Can it be MIG'd or does it have to be TIG'd?

 

is this for an oil return to the pan? if that's the case, get it tig'd. I made a mess of my pan with a mig.. even with low current.

 

Something like SS exhaust tubes to mild steel flanges MIG is fine, you could TIG them if you wanted to I guess.
Something delicate should be TIGed for best results, oil pans, thin sheet metals, etc.

 

Ive been welding all of my manifolds with a high-silicon stainless filler-metal for about a month now. Mild and Stainless. So far, no problems. But ya, Oil pans you want to be TIGed, anything else, MIG will do the trick.

 

This is for a downpipe (vband flange to 5 bolt flange). Has anyone actually done this, because I'd like some advise on how ot prep it, voltage, etc? I am going to be welding with a 110v Miller, and I can run either pure argon or argon/co2 mixed. Thanks.

 

im about to mig weld a mild steel bung to the oil pan will that work. why dose it need to be tig welded just for looks or for strength.

 

Yeah, mild steel to mild steel is no problem. TIG will look better, but probably won't make a difference in terms of strength

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EFrollingout &raquo;</TD></TR><TR><TD CLASS="quote">im about to mig weld a mild steel bung to the oil pan will that work. why dose it need to be tig welded just for looks or for strength.</TD></TR></TABLE>

 

doesnt have to be tig'd....but tig'd is stronger and looks better. if ur going to tig it, the make sure to use 309 filler (welding dissimilar metals). u can even use stainless wire on the mig too.

MIG&TIG production rate vs shear strength

 

Thanks Javier!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by javierb14 &raquo;</TD></TR><TR><TD CLASS="quote">doesnt have to be tig'd....but tig'd is stronger and looks better. if ur going to tig it, the make sure to use 309 filler (welding dissimilar metals). u can even use stainless wire on the mig too.

MIG&TIG production rate vs shear strength
</TD></TR></TABLE>

 

to weld stainless to steel it needs to be alot hotter than steel to steel so it tends to warp a little more if you welding delicate pieces

 

I don't have problems welding bungs or returns on oil pans or sheet via MIG. Play around with your machine, it just takes a little finesse.