mig weld crank

[randytbo]

I'm getting my crank welded a buddy said he would do it for free but he only has a mig welder will that work or does it have to be tig?

[FireHead]

I'm getting my crank welded a buddy said he would do it for free but he only has a mig welder will that work or does it have to be tig?

TIG is probably best... I don't think you could get the penetration needed in such a small area with MIG welder without making a huge weldment.

[sleeper06]

You need a tig with a rod that will flow easily,I just forget which rod it is

[FireHead]

You need a tig with a rod that will flow easily,I just forget which rod it is

Theoretically you don't need any rod while TIG welding the pin to the CW, you just undercut the entire diameter........ :geek:

[dtcohen]

you could get the penetration with a mig welder, just turn the wire speed down and the heat up

 

 

tig would be best though

[Wildcardracing]

Tig with no rod. If you use mig or add rod with the tig it will add metal and create a balance issue.

Edited July 15, 2009 by slobanshee06

[FireHead]

Tig with no rod. If you use mig or add rod with the tig it will add metal and create a balance issue.

That's the correct answer. :geek:

[Whitbread]

Tig with no rod. If you use mig or add rod with the tig it will add metal and create a balance issue.

Amen. Do the balance math for 3 grams at ~2" radius from crank centerline at 10,000rpm. You won't add filler after seeing the result.

[AWR]

do not mig....tig with no filler

[Bansh-eman]

Tig with no rod. If you use mig or add rod with the tig it will add metal and create a balance issue.

Beat me to it

[NN2]

No, No, No...You're all taking this too seriously and making it difficult. Just use an Arc welder thats usually available anywhere. Clamp a piece of 6010 rod and turn up to 250 amps. One touch and you'll have the whole pin welded in a second :biggrin:

 

J/K obviously. The other guys have got it right. Tig, no rod be perfect.

[dtcohen]

Amen. Do the balance math for 3 grams at ~2" radius from crank centerline at 10,000rpm. You won't add filler after seeing the result.

 

 

never thought about that, lol