Polycrystalline diamond and CBN cutting tools
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United States of America Patent
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-
Oct 27, 1987
Grant Date -
N/A
app pub date -
Feb 27, 1986
filing date -
Feb 27, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cutting tool comprised of an annular polycrystalline layer of diamond or cubic boron nitride integrally adhered to an annular recess in an upper peripheral portion of an integral cemented carbide substrate structure, said layer having a round cutting edge, one face of the layer being adhered to the bottom surface of the recess and an innular annular side of the layer being adhered to the inner wall of the recess, the thickness of the polycrystalline layer and the height of the wall being substantially equivalent.
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