Cubic boron nitride (CBN) abrasive tool
First Claim
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1. A CBN abrasive tool, comprising a metal substrate and a single layer of CBN grits bonded to said metal substrate by a braze alloy, wherein the surface chemistry of said CBN grits is modified by depositing a film of carbide selected from the group of carbides containing transition metals consisting of group IVA, VA and VIA, said film being strongly adhered to crystal surfaces of said CBN grits.
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Abstract
A monolayer CBN tool is fabricated by coating CBN grits with carbides of transition metals directly by CVD to make the surface metallurgically compatible to readily and commercially available brazing alloys known for their strength and durability.
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Citations
9 Claims
- 1. A CBN abrasive tool, comprising a metal substrate and a single layer of CBN grits bonded to said metal substrate by a braze alloy, wherein the surface chemistry of said CBN grits is modified by depositing a film of carbide selected from the group of carbides containing transition metals consisting of group IVA, VA and VIA, said film being strongly adhered to crystal surfaces of said CBN grits.
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6. A method of manufacturing a CBN abrasive tool, comprising the steps of:
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providing a metal substrate; providing a plurality of CBN grits; depositing a film of carbide on said CBN grits, said carbide being selected from the group of carbides containing transition metals consisting of group IVA, VA, and VIA; and bonding the carbide film-coated CBN grits to said metal substrate by a braze alloy. - View Dependent Claims (7, 8, 9)
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Specification