Patterned abrasive material and method
AssigneeUltimate Abrasive Systems, L.L.C.
InventorNaum N. Tselesin
Life of this patent
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Abstract
A composite abrasive material is formed by coating a mesh-type material substrate with an adhesive, contacting the substrate with a quantity of hard, abrasive particles, then removing all particles not held by the adhesive within the openings of the mesh-type material. The particles are surrounded with a sinterable matrix material while the particles are temporarily held by the adhesive. The substrate can have the adhesive applied in a pattern, or covering uniformly to cause the particles to adhere in certain areas to achieve a desired pattern. While the particles are held on the substrate, physical force can be applied to orient the particles uniformly; then, a powder can be applied, or the substrate can be applied to a preform. Subsequent treatment with heat and pressure will complete the composite abrasive material.
Claims62
A method for making an abrasive material comprising the steps of adhering a pressure sensitive adhesive tape on one side of a mesh material substrate having a plurality of openings extending therethrough so that said pressure sensitive adhesive tape closes said openings on said one side of the substrate, applying at least one mask having a plurality of openings distributed in a predetermined pattern over the side of the substrate opposite the side to which the pressure sensitive tape is adhered, placing a quantity of hard particles through the openings in said mask and into exposed openings in said mesh material substrate to form a predetermined distributed pattern of said particles in said particles in said substrate corresponding to the pattern of the mask, wherein at least some of said particles in said exposed openings in said mesh material substrate adhere to said pressure sensitive tape, at least partially surrounding the particles that are adhered to said pressure sensitive adhesive tape with a sinterable matrix material, and heating said sinterable matrix material to cause said material to hold said particles in said pattern.
A method for making an abrasive material comprising the steps of adhering a pressure sensitive adhesive tape to selected areas of one side of a mesh material substrate having a plurality of openings extending therethrough so that said pressure sensitive adhesive tape closes said openings in said selected areas on said one side of the substrate, placing a quantity of hard particles into at least some of the openings in the selected areas of the mesh material substrate to form a predetermined distributed pattern of said particles in said substrate, wherein at least some of said particles in said openings in said selected areas of said mesh material substrate adhere to said pressure sensitive adhesive tape, at least partially surrounding the particles that are adhered to said pressure sensitive tape with a sinterable matrix material, and heating said sinterable matrix material to cause said material to hold said particles in said pattern.
Dependencies are inferred from the claim text.