Metal working – Method of mechanical manufacture – With testing or indicating
Patent
1980-06-30
1982-03-23
Combs, Ervin M.
Metal working
Method of mechanical manufacture
With testing or indicating
B23Q 1700, G01N 2188
Patent
active
043205674
ABSTRACT:
In a method for determining the machinability of a metal substrate for use in an electromechanical recording apparatus a surface of a foundation is coated with a layer of metal. The metal layer is machined such that the metalized surface of the foundation is substantially flat and smooth. After the machining step, the metal surface is inspected for depressions with a microscope using a differential interference contrast technique. The number of depressions observed is indicative of the machinability of the coated foundation.
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patent: 4044379 (1977-08-01), Halter
patent: 4065786 (1977-12-01), Stewart
patent: 4197011 (1980-04-01), Hudson
Deckert Cheryl A.
Holub Edward J.
Valembois Pierre V.
Combs Ervin M.
RCA Corporation
Roehling J. E.
Tripoli J. S.
Whitacre E. M.
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