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US 5,477,754 AGranted
Metal cutting inserts and method of making
AssigneeCarboloy Inc.
InventorJeffrey R. Herbon
Life of this patent
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Abstract
A metal cutting insert is made by sintering an insert body and coating the sintered insert body with a conventional coating. Subsequently, a supporting surface of the insert is ground smooth while removing the coating therefrom. The supporting surface of the insert is thereby formed by an uncoated, smoothly ground surface of the sintered body.
Claims9
A method of making a metal cutting insert comprising the steps of:
- A) forming an insert body having first and second main faces disposed opposite one another and interconnected by a side face, said first main face including a cutting edge, said second main face including a supporting surface for supporting the insert on a seating surface;
- B) coating said insert with a coating such that at least said cutting edge and said supporting surface are coated;
- and thereafter
- C) grinding said supporting surface smooth so as to simultaneously remove the coating therefrom, whereby the supporting surface of said insert is defined by a smoothly ground surface of said insert body.
1 more element
Dependencies are inferred from the claim text.