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Author Topic: Hardening non hardened steel gears....??  (Read 5490 times)

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Offline fabr

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Re: Hardening non hardened steel gears....??
« Reply #30 on: May 25, 2011, 05:59:17 AM »
I have several cheaper ones. Ones that go to 1600*F+ are not cheap.
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Offline vidio1

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Re: Hardening non hardened steel gears....??
« Reply #31 on: May 25, 2011, 06:05:09 AM »
Austenitizing temperature of stress proof is 1525, tool steels are approaching 2000f. The run of the mill laser thermometer isn't going to cut it. Most rarely go above 1000f.
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Offline fabr

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Re: Hardening non hardened steel gears....??
« Reply #32 on: May 25, 2011, 06:08:41 AM »
+1
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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Offline Whiplash

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Re: Hardening non hardened steel gears....??
« Reply #33 on: May 25, 2011, 07:41:29 AM »
Yeah, I have one that cost like $40.00 but it only goes to 900* Hopefully I can get a torch to borrow for the weekend!
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Offline Hammerworks

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Re: Hardening non hardened steel gears....??
« Reply #34 on: May 25, 2011, 10:41:44 AM »
For prototype ,you can temper it by eye.

Medium straw(or dark straw,i forget now?) color,quench in water.
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LiveWire

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Re: Hardening non hardened steel gears....??
« Reply #35 on: May 25, 2011, 11:14:06 AM »
I hardened some tool steel with the torch and quench and got pretty decent results. However, my application of press fixtures does not have shock load. I did not temper after. I have also had parts hardened professionally. The ones I had done professionally cost me less than what I paid to get the tanks refilled for the torches. It was definitely one of those cases where it cost less than I assumed it would. The people with the right tools can do it far more efficiently.
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Offline fabr

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Re: Hardening non hardened steel gears....??
« Reply #36 on: May 25, 2011, 12:28:00 PM »
+1
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"
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