Indexable insert for milling and milling cutter employing the sa

Details Indexable insert for milling and milling cutter employing the sa Indexable insert for milling and milling cutter employing the sa

1995-09-12

1998-01-13

Howell, Daniel W.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407 53, 407119, B23C 520

Patent

active

057071853

ABSTRACT:
An indexable insert for milling includes a metal base made of cemented carbide, and a cutting edge consisting of a sintered CBN compact and a flat drag type cutting edge which are brazed to the metal base or bonded thereto by integral sintering. A subcutting edge angle (.beta.), a negative land angle (.theta.) and a negative land width (L) are set at 30.degree. to 60.degree., 30.degree. to 45.degree. and 0.05 to 0.40 mm respectively, while the subcutting edge has a straight shape. Due to this structure, the indexable insert has excellent cutting performance particularly in face milling of parts which are made of gray cast iron, and the tool life can be extended.

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"Tool and Manufacturing Engineers Handbook", 4th edition, vol. 1 Machining, Society of Manufacturing Engineers(SME), Chapter 8.
Machines Production, Fraises: Repondre Aux Besoins Actuels de l'Automobile, May 1982, pp. 13-15, 17.

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