Cutting insert

Details Cutting insert Cutting insert

1975-04-07

1976-08-10

Hinson, Harrison L.

Metal working

Upholstered article making

Tufting

B26D 100

Patent

active

039733076

ABSTRACT:
A cutting insert of hard wear resistant material which provides a cutting edge useful over very wide ranges of metalworking conditions and effective for reducing cutting machine power requirements and providing safe and efficient chip control, simultaneously. The cutting insert has a narrow land area along the cutting edge and a wall means leading downwardly and inwardly from the inner edge of the land area and a planar surface extending inwardly from the lower edge of the wall means. The insert is free of any "chip groove," having a rising rearward wall, per se, and dimensions are given wherein it has been found that chip formation and breakage occur as naturally as possible with a minimum of work effort input for bending or breaking the chip. Power consumption is reduced and individual chip formations are controllable over a wider range of work conditions than heretofore possible.

REFERENCES:
patent: 1756516 (1930-04-01), Klopstock
patent: 2055769 (1936-09-01), Kinzel
patent: 2289344 (1942-07-01), Cedarleaf
patent: 3078546 (1963-02-01), Kiernan
patent: 3137059 (1964-06-01), Hertel
patent: 3137917 (1964-06-01), Dowd
patent: 3152385 (1964-10-01), Wheildon, Jr. et al.
patent: 3381349 (1968-05-01), Newcomer
patent: 3395434 (1968-08-01), Wirfelt
patent: 3548473 (1970-12-01), Stein

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