Hardness for 50 mm dia. shaft in 1045
Hardness for 50 mm dia. shaft in 1045
(OP)
I need to know the best hardness for my industrial 50 mm diameter shaft in AISI 1045 material. I don't wanna be too hard because I don't need strenght, I need wear resistance (with the key).
I was thinking around 30 HRC. Is it too brittle ?
Cedric
I was thinking around 30 HRC. Is it too brittle ?
Cedric





RE: Hardness for 50 mm dia. shaft in 1045
RE: Hardness for 50 mm dia. shaft in 1045
RE: Hardness for 50 mm dia. shaft in 1045
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RE: Hardness for 50 mm dia. shaft in 1045
RE: Hardness for 50 mm dia. shaft in 1045
RE: Hardness for 50 mm dia. shaft in 1045
What I have done quite often in the back shop is to flame harden the shaft by simply applying heat via a tiger torch. Let the shaft become cherry red, then quickly submerge it into a bucket of ordinary motor oil, say SAE 10/40. Be sure to stir the motor oil while the shaft is submerged, i.e. no peaking, air will tend to ignite the oil, which was my last mistake! :)
You will find the wear to be sufficiently addressed using flame hardening methods.
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada