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Old 07-15-2022, 09:25 PM
staybusy staybusy is offline
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Join Date: Oct 2020
Location: Ontario, Canada
Posts: 83
Default Should I Case Harden Shredder Teeth?

I have some 1" plate I cut into teeth for a shredder / grinder. As far as I know it's mild steel (sourced from a junkyard). This steel doesn't harden well from heat treatment.

The shredder will be for processing meat, bone, hooves, etc.

I'm wondering how mild steel teeth would hold up to dense bone - lamb shanks, deer femur, cow femur, pigs feet, etc. Will the teeth eventually get warped and chip if I don't harden them?

Is it worth it to case harden the teeth?

Case harden then temper?

Setup will be extreme high torque, very low RPM so no high speed impacts. I don't care about grinding speed at all, only that it can process material.

See pic for tooth profile.
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