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Re: ok. . . .but. . . . .

TylerB wrote:

> it is common engineering practice to use heating to relax the tension created in manufacturing processes, not sub-cooling.

Check out the geometric stabilzation of Precision Gage Blocks (called Jo-Blocks or Do All Blocks).

Cycling the material (steel) repeatedly between room temp and cryogenic levels ( <-200 degrees F), relieves manufacturing stresses far more effectively than tempering with heat.

Its been standard practice in Precision tooling, gaging, and comparitive measurement since, oh about the 1880's......

Cheers,
-Steve





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  • Re: ok. . . .but. . . . . - -Steve 05/2/0113:49:59 05/2/01 (0)


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