Diamond Innovations. Inc.

Shan Wan

Thomas Easley

Gary Martin Flood

Eoin M O'Tighearnaigh

Rosemarie Shelly Snyder

Therese Raftery

In an embodiment, an abrasive compact includes ultra-hard particles which are sintered, bonded, or otherwise consolidated into a solid body. The compact also includes various physical characteristics having a continuous gradient, a multiaxial gradient, or multiple independent gradients.

Graded drilling cutters

An abrasive tool insert is formed from a substrate having an inner face that has a center. The inner face slopes outwardly and downwardly from the center. An annular face slopes downwardly and outwardly from the inner face. An abrasive layer, having a center and a periphery forming a cutting edge, is integrally formed on the substrate.

Cutting tools with two-slope profile

An abrasive tool insert is formed from a substrate having an inner face that has a center, and annular face which annular face has a periphery. The inner face slopes outwardly and downwardly from the center at an angle ranging from between about 5&#xb0; and 30&#xb0; from the horizontal. The annular face surrounds by the inner face and terminates at the periphery. The annular face slopes downwardly and outwardly from the inner face at an angle of between about 20&#xb0; and 75&#xb0; from the horizontal. A continuous abrasive layer, having a center and a periphery forming a cutting edge, is integrally formed on the substrate and defines an interface therebetween.

An abrasive tool insert includes (a) a substrate having a support face that includes (1) an inner support table, (2) an outer shoulder having a width, S, and (3) a downwardly sloping interface from the support table to the shoulder, which interface has a slope angle, S. A continuous abrasive layer, integrally formed on the substrate support face, includes (1) a center having a height, D, (2) a diameter, D, (3) a periphery having a height, D, in contact with the shoulder and which periphery forms a cutting edge. S:Dranges from between 0 and about 0.5. For each Sand S:D, D:Dis selected so as to diminish residual stress in the abrasive layer.

Growing community of inventors

Lewis Center, OH, United States of America

Shan Wan