Sintered abrasive tools
First Claim
1. An abrasive tool adapted for mounting on a grinding machine consisting of an annular rim sintered to a central hub, wherein the annular rim comprises superabrasive grain in a metal matrix bond, the central hub comprises sintered metal containing 60 to 100 wt. % of a metal powder selected from the group consisting of aluminum, titanium and magnesium, and their alloys, and combinations thereof, and the sintered metal of the central hub has a density less than 4.5 g/cc and wherein the annular rim and the central hub are sintered in a single sintering process.
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Accused Products
Abstract
Light weight metal bonded abrasive tools consisting of an annular rim of metal bonded superabrasive joined to a central core or hub made from a dissimilar metal, such as aluminum powder, are manufactured in a single sintering step that yields a near net shape abrasive tool. The abrasive tools are useful for the grinding of optical components made of plastic or glass.
32 Citations
13 Claims
- 1. An abrasive tool adapted for mounting on a grinding machine consisting of an annular rim sintered to a central hub, wherein the annular rim comprises superabrasive grain in a metal matrix bond, the central hub comprises sintered metal containing 60 to 100 wt. % of a metal powder selected from the group consisting of aluminum, titanium and magnesium, and their alloys, and combinations thereof, and the sintered metal of the central hub has a density less than 4.5 g/cc and wherein the annular rim and the central hub are sintered in a single sintering process.
Specification