Subject:
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Re: Strengthening Gears
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 6 Mar 2002 16:01:26 GMT
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Viewed:
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3215 times
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I hahe been lurking on this conversation for a bit. Here are some random
thoughts:
Blocks, Gears and Axles use three different materials. By that I mean the
are differnet grades of the same material or totally different materials. I
lean towards totally different materials, but what do I know? I am an IT
guy, not a materials engineer.
I have had both gear failures and axle failures.
Axle failures are almost always caused (for me) by trying to transmit a
large amount of torque over a long distance. The axle twists and eventually
fails.
Gear failure are almost always on non-axle driven gears (free spinning on
the axle and the teeth break) or gears attached to very short axles (and the
axle connection gives).
It would take some scientific testing to be sure, but I am almost positive
that what we are seeing is the boiled gear stretches less, so holds together
longer, but I would expect the failure is always catastrophic (the gear
snaps), versus a non-boiled gear which stretchesw first and then snaps.
Just a wild guess.
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Message is in Reply To:
 | | Re: Strengthening Gears
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| (...) This is just a wild thought, but what if the boiling process doesn't alter the the strength of the material, but helps to reduce stress concentration points? If the gear deforms ever so slightly (i.e. negligible deformation- no change when (...) (22 years ago, 6-Mar-02, to lugnet.technic)
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