Wear resistant vs. easily machinable metals
Normally you achieve wear resistance by running a hard metal against a
softer one, or a metal against plastic. Smooth surfaces are a must.
If you make one part out of steel that's hardened and polished, and the
mating part out of teflon or nylon, you may be quite pleased at the wear
life. Make that second part out of brass or bronze and you may be
pleased at the wear life, but a bit bummed at the price.
Can you machine what you want out of unhardened steel, then harden it
and do your final sizing on a whetstone? Or can you use hardened shaft
material that just needs to be cut to length?
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Tim Wescott
Wescott Design Serviceshttp://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details athttp://www.wescottdesign.com/actfes/actfes.html
I thought using "hard on soft" was intended to only increase the wear
life of one side. The soft side would have to be replaced on a more
frequent basis. And more often than when using "hard on hard".
Darren Harris
Staten Island, New York.
Nope, Tim is right
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