Abrasive product
OwnerStewart N. Middlemiss, Raymond A. Chapman +1inventors
InventorsStewart N. Middlemiss, Raymond A. Chapman, Alan R. Jarvis
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Abstract
A method of producing an abrasive product comprises the steps of providing a mixture of diamond and discrete carbide particles, the diamond particles being smaller than the carbide particles and present in the mixture in an amount of more than 50 percent by volume, and subjecting the mixture to diamond synthesis conditions in the presence of a binder metal such as cobalt, nickel or iron. The abrasive product thus produced has a substantial amount of direct diamond-to-diamond bonding and many of the characteristics of a diamond compact, but improved impact resistance due to the presence of the carbide particles. The abrasive product has particular application in the machining of wood products such as natural wood, chipboard, fiberboard and hardboard.
Claims26
A method of producing an abrasive product comprising the steps of:
- (a) providing a mixture of diamond and discrete carbide particles, the diamond particles being smaller than the carbide particles and present in the mixture in an amount of more than 50 percent by volume;
- and
- (b) subjecting the mixture to elevated temperature and pressure conditions at which sufficient direct diamond-to-diamond bonding occurs between the diamond particles in said mixture of diamond and discrete carbide particles and the diamond is crystallographically stable in the presence of a binder metal capable of bonding the mixture into a hard conglomerate.
An abrasive product produced by providing a mixture of diamond and discrete carbide particles, the diamond particles being smaller than the carbide particles and present in the mixture in an amount of more than 50 percent by volume, and subjecting the mixture to elevated temperature and pressure conditions at which the diamond is crystallographically stable in the presence of a binder metal capable of binding the mixture into a hard conglomerate;
- said abrasive product presenting a cutting edge.
Dependencies are inferred from the claim text.