Core drill bit and methods of forming
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorJi WANG
Life of this patent
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Abstract
A core drill bit can include a first region and a second region. The first region can include abrasive particles in a first bond matrix, and the second region can include abrasive particles in a second bond matrix. The first region is connected to the second region. A composition of the first bond matrix can be different from a composition of the second matrix. In a particular embodiment, the first bond matric can include a Co-containing material.
Claims20
A core drill bit comprising an abrasive tip and a drill body, wherein the abrasive tip comprises a first region and a second region, wherein the first region comprises abrasive grains within a first bond matrix, wherein the second region comprises abrasive grains within a second bond matrix and wherein a composition of the first bond matrix is different from a composition of the second bond matrix.
A core drill bit comprising:
- a longitudinal axis running the length of the drill bit;
- a first region comprising abrasive grains within a first bond matrix;
- and
- a second region comprising abrasive grains within a second bond matrix,
- wherein the first region comprises an annular cross-section about the longitudinal axis of the drill bit, wherein the second region comprises an annular cross-section about the longitudinal axis of the drill bit, and wherein a composition of the first bond matrix is different from a composition of the second bond matrix.
Dependencies are inferred from the claim text.