Multi-cornered reversible cutting-plate

Details Multi-cornered reversible cutting-plate Multi-cornered reversible cutting-plate

1984-01-18

1985-12-03

Husar, Francis S.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

B23P 1528, B26D 100, B23B 2702, B23B 2722

Patent

active

045563454

ABSTRACT:
A nine-cornered reversible cutting plate having a plurality of primary cutting edges and secondary cutting edges on each of its upper and lower sides, the primary and secondary cutting edges being of unequal length. The cutting plate is generally shaped as a nine-sided polygon formed by an equilateral triangle whose vertex regions have been replaced by small isosceles triangles, with the primary cutting edges being disposed in the regions of the isosceles triangles and with the ratio of the length of the primary cutting edges to the length of the secondary cutting edges ranging from 1:1.5 to 1:3. The corners between the primary cutting edges and secondary cutting edges are rounded.

REFERENCES:
patent: 1838520 (1931-12-01), Archer
patent: 3271842 (1966-09-01), Breuning
patent: 3541655 (1970-11-01), Stier
patent: 3613197 (1971-10-01), Stier
patent: 3616507 (1971-11-01), Wirfelt
patent: 3621549 (1971-11-01), Billups
patent: 3935624 (1976-02-01), Weinreich
patent: 4400117 (1983-08-01), Smith
Publication "Werkstatt und Betrieb", 114, 1981, p. A-155.

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