Facing cutter

Details Facing cutter Facing cutter

1987-01-15

1988-07-19

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

408206, 408207, 408703, B23B 4102, B23B 5100

Patent

active

047581204

ABSTRACT:
A facing cutter for making annular holes which includes a substantially cylindrical jacket having inner and outer peripheries and a lower end. A plurality of axial teeth are spaced circumferentially at the lower end of the jacket with each tooth having an inner and outer cutting edge which extends helically along the jacket. The teeth are of alternately different design, with a different angle formed by the intersection of the inner and outer cutting edges on every other tooth and the axial length of the alternate teeth being different. An initial tooth cuts the central portion of a groove to be formed to a deeper level than an alternate tooth that cuts the side portions of the groove to be formed.

REFERENCES:
patent: 313405 (1885-03-01), Davis
patent: 3244035 (1966-04-01), Jehle et al.
patent: 3548687 (1970-12-01), Holloway
patent: 3765789 (1973-10-01), Hougen
patent: 4408935 (1983-10-01), Miyanaga
patent: 4586857 (1986-05-01), Ohmi
patent: 4632610 (1986-12-01), Hougen

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