Method of making grooving or parting insert

Details Method of making grooving or parting insert Method of making grooving or parting insert

2006-07-12

2009-08-18

Chen, Bret (Department: 1792)

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

C427S255394, C427S255700

Reissue Patent

active

RE040873

ABSTRACT:
A method of making a cutting tool, the cutting tool having a WC—Co based cemented carbide body and a multi-layer coating, the method including: applying a first innermost bonding layer TiN to the body; applying a second layer in the form of a mutlilayered structure having sublayers of (TixAl1-x)N were x varies according to 0.45<x<0.55 and 0.70<x<0.80; applying a third layer of (TixAl1-x)N where x is 0.45<x<0.55; and applying a forth outermost layer on TiN.

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