Posted by Alex J [126.96.36.199] on Friday, April 05, 2019 at 11:19:03 :
In Reply to: Calling All Engineers/Machinists posted by Vaughn [188.8.131.52] on Thursday, April 04, 2019 at 19:31:43 :
I've made a handful of shafts for things and I prefer to use 8020, both for splined applications and for idler applications. It doesn't seem to shrink as much when hardened, and it is easily machinable too. A simple heat treat oven can case harden the surface rather easily to give your wear resistance without adding any brittling that comes with through hardening.
Just my experience.
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