Patent ID: 7726026
Filing Date: 2010-06-01
Classification: B22F,C22C,F04B,F16K,Y10T

Abstract:
1. An inlay ring substantially symmetrical about an inlay ring longitudinal axis and comprising at least one metal carbide and at least one nonvolatile cement, said inlay ring having an inlay ring first end spaced longitudinally apart from an inlay ring second end, and said inlay ring further having a frusto-conical outer surface spaced radially apart from a cylindrical inner surface, said inlay ring first end extending a first radial distance between said frusto-conical outer surface and said cylindrical inner surface, and said inlay ring second end extending a second radial distance between said frusto-conical outer surface and said cylindrical inner surface; wherein said inlay ring comprises between about 1% and about 3% voids; wherein said inlay ring comprises between about 70% and about 98% metal carbide; wherein said inlay ring has an inlay ring modulus of elasticity; wherein said first radial distance exceeds said second radial distance; wherein said frusto-conical outer surface has an outer surface half-angle with said inlay ring longitudinal axis; wherein said inlay ring first end comprises a frusto-conical surface having an inlay ring first end half-angle with said inlay ring longitudinal axis; wherein said inlay ring first end half-angle exceeds said outer surface half-angle; and wherein said inlay ring first end further comprises a curved intersection with said cylindrical inner surface, said curved intersection having a radius between about 0.5 times and about 1.2 times said first radial distance.