Throw-away tip and cutting tool

Details Throw-away tip and cutting tool Throw-away tip and cutting tool

Filed on

2003-12-23

Date issued

2008-08-19

Examiner

Turner, Archene (Department: 1775)

Patent Class

Specialized metallurgical processes, compositions for use therei

SubClass

Compositions

SubSubClass

Consolidated metal powder compositions

Other Related Categories

C407S119000, C075S238000, C075S240000, C075S237000

Type

Reexamination Certificate

Status

active

Patent number

07413591

Description

ABSTRACT:
The throw-away tip has a shape of substantially flat plate, comprising from 1 to 30% by weight of binder phase comprising at least one kind of Co and Ni, and 70 to 99% by weight of carbonitride phase comprising composite metal carbonitride of Ti and one or more kind other than Ti among metals of groups 4a, 5aand 6aof the Periodic Table, wherein the mean grain size of the carbonitride phase is 1.5 μm or less, while flexural strength test pieces which are cut out of ten throw-away tips including the side face thereof show flexural strength with a Weibull coefficient of 5 or higher. Throw-away tips having fine carbonitride phase structure and high cutting performance can be made with less variance among individual throw-away tips.

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