A ROCK REMOVAL BODY
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United States of America Patent
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Issued Date -
Aug 11, 2016
app pub date -
Sep 15, 2014
filing date -
Sep 16, 2013
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Abstract
A rock removal body comprises a PCD material (601) bonded to a substrate (602) along an interface. The body is of right circular cylindrical shape and the PCD material has a thickness (607) from the circumferential edge axially along the surface of the barrel portion of around 3 mm or greater, and a functional working volume (606) having a maximum extent such that the final wear surface does not intersect the interface of the PCD material volume and the substrate. The PCD material volume comprises a diamond network and a metallic component forming a metallic network, the substrate comprises a cementing metal, the metallic component and the cementing metal being independent of one another, independently derived, have not interacted during the high pressure high temperature manufacturing process, are measurably distinguishable and are preselected to be different with respect to their alloy composition. The PCD material encompasses the functional working 609 volume and is homogeneous.
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