Boronnitride coated microcutting device

Details Boronnitride coated microcutting device Boronnitride coated microcutting device

1992-06-17

1994-04-05

Eley, Timothy V.

Cutters, for shaping

Rotary cutting tool

Composite body of diverse material

407 54, 407 64, 407119, B26D 112

Patent

active

052998924

ABSTRACT:
A rotating tool for the cutting of hardened workpieces is comprised of a base body made of steel and having a working surface. The working surface is coated with a homogeneous layer of an extremely hard material. The layer has a uniform thickness. The working surface has a plurality of microcutting grooves that extend parallel to one another and at an acute angle relative to a tangent of the working surface. Each microcutting groove has a cross-sectional profile with a cutting edge and a chip space. The extremely hard material is preferably boron nitride and the base body is preferably made of hardened steel.

REFERENCES:
patent: 2318549 (1943-05-01), Wilkie
patent: 3531840 (1970-10-01), Tupper
patent: 3553905 (1971-01-01), Lemelson

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