Tool comprised of a holder body and a hard insert and method of

Details Tool comprised of a holder body and a hard insert and method of Tool comprised of a holder body and a hard insert and method of

1993-11-03

1995-05-23

Bagnell, David J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

299 86, 175427, E21B 1056, E21C 35183

Patent

active

054174759

ABSTRACT:
A breaking or excavating tool has a diamond and/or cubic boron nitride coated cutting insert mounted at the forward end of a tool body which is made of a softer material than the insert. A separately formed retaining member such as a washer, ring or sleeve, made of harder material than the body, is brazed to a front face of the body surrounding the insert to protect the tool body against wear.

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