Diamond tools for machining
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United States of America
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-
Mar 24, 1987
Grant Date -
N/A
app pub date -
Nov 10, 1981
filing date -
Dec 27, 1971
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Diamond tools and superpressure processes for the preparation thereof are described wherein the diamond content is present either in the form of a mass comprising diamond crystals bonded to each other or of a thin skin of diamond crystals bonded to each other. In each instance the diamond content is supported on and directly bonded to an extremely stiff sintered carbide substrate in order to provide mechanical support therefor to more effectively utilize the high elastic modulus of the diamond. The questions raised in reexamination request No. 90/000,610, filed Aug. 15, 1984, have been considered and the results thereof are reflected in this reissue patent which constitutes the reexamination certificate required by 35 U.S.C. 307 as provided in 37 CFR 1.570(e).
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