Cutting tool for metal working as well as method in the...

Details Cutting tool for metal working as well as method in the... Cutting tool for metal working as well as method in the...

2007-09-18

2007-09-18

Howell, Daniel W. (Department: 3722)

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

C076S108600, C076S115000, C408S144000, C408S713000, C408S226000

Reexamination Certificate

active

10846632

ABSTRACT:
A cutting tool and a method for the production of cutting tools for metalworking characterized in that the holder body of the tool first is submitted to a surface hardening that results in the formation of compressive stresses in the surface and then submitted to a surface treatment that gives additional contribution of compressive stresses in the surface. In this way, it is allowed to, on one hand, be able to modify/machine or remove parts of or the entire phase-transition layer obtained in the surface hardening at the same time as additional compressive stresses are built up in the surface of a hardened steel material in the tool body.

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