Cutting insert adapted to be ground on upper and lower surfaces

Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product

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Details

419 26, 407113, 407114, 407115, 407116, 51307, B22F 324

Patent

active

060077662

ABSTRACT:
An indexable cutting insert for metal machining comprises an upper rake surface, a bottom surface and side surfaces that extend between the upper and bottom surfaces. Cutting edges are formed at the transitions between the side surfaces and the upper surface. Disposed along the cutting edges on the upper surface are elongated primary lands. Disposed inside of the lands is a chip-breaking depression. A raised land area to be ground is situated in the chip-breaker, so that the total grinding area of the upper surface becomes about as large as the total grinding area of the bottom surface. The insert can thus be ground by upper and lower grinding wheels which rotate simultaneously in opposite directions.

REFERENCES:
patent: 3341920 (1967-09-01), Kelm
patent: 3341921 (1967-09-01), Weller et al.
patent: 3383748 (1968-05-01), Galimberti et al.
patent: 4116576 (1978-09-01), Gawryk, Sr.
patent: 5078550 (1992-01-01), Satran et al.
patent: 5365805 (1994-11-01), Pantzar et al.
patent: 5477754 (1995-12-01), Herbon
patent: 5569000 (1996-10-01), Littecke et al.

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