TonyRumore
ArboristSite Guru
I have another crank, but I thought I would attempt a Tig fix on this one before tossing it in the trash. I thought it came out pretty good for a first-try.
044 Broken Crank Tig Weld Repair (pic)
- Thread starter TonyRumore
- Start date
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Dan_IN_MN
Addicted to ArboristSite
Nice job!
Why do you think that crank broke in the first place? How long did it take you?
Why do you think that crank broke in the first place? How long did it take you?
aarolar
ArboristSite Operative
Im thinking start to finish 4 hrs if he stayed busy. If I was quoting it I wouldn't go less than 6, I am guessing this is your first time repairing a crank and not you first time tiging
Frogfarmer
ArboristSite Operative
Looks good. I would run it.
TonyRumore
ArboristSite Guru
It took about 10 minutes to fix the crank. I got lucky and the first weld pass was just about perfect.
The saw was a basket-case/parts saw.....serious abuse/neglect on the whole thing. I just happen to already have all the parts to bring it back to life or I wouldn't have bought the ugly thing.
Tony
The saw was a basket-case/parts saw.....serious abuse/neglect on the whole thing. I just happen to already have all the parts to bring it back to life or I wouldn't have bought the ugly thing.
Tony
TonyRumore
ArboristSite Guru
I Tig weld little gun parts, all day, every day......
Stihlofadeal64
Addicted to ArboristSite
Wow, sounds intricate. Sounds also like my paw in law. Although he does not tig parts He
is a master-gunsmith. He subs out the welding stuff to a couple of great guys. I'd say if
he were close, he'd need to get you to do this stuff. I've been a fabricator for many years
and I'd say that repair is one of the slickest I've ever seen.
splitpost
Nothing but 32:1
I have another crank, but I thought I would attempt a Tig fix on this one before tossing it in the trash. I thought it came out pretty good for a first-try.
nice,got a 026 crank that needs that sort of fix,what tungsten and filler rod did you use?
TonyRumore
ArboristSite Guru
The tungsten electrode is 3/32" 2% Thoriated, Anchor brand. I don't recall the spec on the rod, but it is
oil quench hardening rod. I don't quench it though....it will make it too hard, brittle and will break easily. When allowed to naturally air cool, it ends up a perfect hardness/toughness for firearms fire control parts, ie, hammers, triggers, sears, etc. It will hold a sear edge for thousands of rounds without wearing or chipping.
Tony
oil quench hardening rod. I don't quench it though....it will make it too hard, brittle and will break easily. When allowed to naturally air cool, it ends up a perfect hardness/toughness for firearms fire control parts, ie, hammers, triggers, sears, etc. It will hold a sear edge for thousands of rounds without wearing or chipping.
Tony
,will pester my brother,hes got a tig at home:biggrin:
