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8889 results about "Abrasive" patented technology

An abrasive is a material, often a mineral, that is used to shape or finish a workpiece through rubbing which leads to part of the workpiece being worn away by friction. While finishing a material often means polishing it to gain a smooth, reflective surface, the process can also involve roughening as in satin, matte or beaded finishes. In short, the ceramics which are used to cut, grind and polish other softer materials are known as abrasives.

Abrasive grain, abrasive articles, and methods of making and using the same

Alpha alumina-based abrasive grain. The abrasive grain can be incorporated into abrasive products such as coated abrasives, bonded abrasives, non-woven abrasives, and abrasive brushes.
Owner:3M INNOVATIVE PROPERTIES CO

Doubled-sided and multi-layered PCD and PCBN abrasive articles

A doubled-sided PCD or PCBN compact as well as a new multi-layered PCD and PCBN can be produced using high pressure high temperature processes allowing for increased effective thickness of abrasive tools. A polycrystalline compact can include a substrate having a first surface and a second surface which are non-contiguous. Additionally, a first polycrystalline layer can be attached to the first surface of the substrate and a second polycrystalline layer attached to the second surface of the substrate. The first and second polycrystalline layers can include superabrasive particles bonded together by sintering or chemical bonding with an additional metal. Such double-sided PCD and PCBN compacts as well as a new multiple layered PCD and PCBN allow for increased effective thickness of a tool without suffering from non-homogenous results typical of standard PCD and PCBN compacts, regardless of superabrasive particle size. Each polycrystalline layer can include superabrasive particles of varying particle sizes such that the final tool is tailored for specific abrading characteristics. Such doubled-sided and / or multiple layered PCD and PCBN compacts can be incorporated into a wide variety of abrasive tools for use in cutting, milling, grinding, polishing, drilling and other similar abrasive applications.
Owner:CHO HYUN SAM +2

Superabrasive cutting element with enhanced durability and increased wear life and apparatus so equipped

InactiveUS6202770B1Extended service lifeReduced tendency to catastrophically spallDrill bitsConstructionsEngineeringMechanical engineering
A cutting element for use in drilling subterranean formations. The cutting element includes a superabrasive table mounted to a supporting substrate. The superabrasive table includes a two-dimensional cutting face having a cutting edge along at least a portion of its periphery, and a first surface extending forwardly and inwardly from a location radially interior of the cutting edge at a first angle of orientation with respect to the longitudinal axis of the cutting element. The cutting face also includes at least a second surface located between the first surface and the cutting edge and oriented at a different, greater angle to the longitudinal axis than the angle of orientation of the first surface.
Owner:BAKER HUGHES INC

Fused Al2O3-MgO-rare earth oxide eutectic abrasive particles, abrasive articles, and methods of making and using the same

Fused abrasive particles comprising eutectic material comprising Al2O3-MgO-REO eutectic. The fused abrasive particles can be incorporated into abrasive products such as coated abrasives, bonded abrasives, non-woven abrasives, and abrasive brushes.
Owner:3M INNOVATIVE PROPERTIES CO
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