 901 gears and shafts, Anyone know what alloy? |
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| bondo |
 Jul 6 2004, 01:57 PM
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#1
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Practicing my perpendicular parking  Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California  |
I found someone at Cal Poly willing to help me with annealing and rehardening 901 internals so I can machine them. He said it would be helpful to know what alloy the steel is. He also asked if they were case hardened.
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| RAR |
Jul 7 2004, 12:09 AM
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Member Group: Members Posts: 189 Joined: 24-January 04 From: Washington state Member No.: 1,598 |
Case hardening is a coating that hardens only the outer skin of metal. I doubt the metal is all that unusual, but I do know that Porsche uses or used a cyanide bath of sorts to harden crankshafts. Gearbox internals, who knows. All this is just FYI, and it probably doesn't help much. Mismatched heat rehardening of gears can lead to accelerated wear of the softer gear. I don't know exactly what you want to machine, but perhaps using carbide tooling and leaving things hard is your best bet.
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Posts in this topic
bondo 901 gears and shafts Jul 6 2004, 01:57 PM
Bleyseng unobtainium is what I have heard.............. Jul 6 2004, 09:09 PM sgomes Dang! You beat me to it! :lol:
I'm... Jul 6 2004, 09:37 PM bondo Hmm, I tried carbide.. it wore bits dull and barel... Jul 7 2004, 12:14 AM RAR I'm missing something here. Can you cut off se... Jul 7 2004, 12:45 AM Mueller you might also have the option of grinding the gea... Jul 7 2004, 01:35 AM bondo Two second gears? Nope. I want a taller ratio for ... Jul 7 2004, 09:12 AM James Adams Case hardening is more than a few thousandths deep... Jul 7 2004, 09:25 AM ! Why not change the ring and pinion? There was a t... Jul 7 2004, 09:37 AM tdgray Gears are typically made of 8620 steel, then carbo... Jul 7 2004, 09:43 AM bondo I don't want to change the ring and pinion bec... Jul 7 2004, 10:50 AM tdgray A hardness test will not tell what "kind" of mater... Jul 7 2004, 11:06 AM bondo Well he said it would be nice to know what kind it... Jul 7 2004, 11:14 AM
RAR |
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