Process for broaching of grooves

Details Process for broaching of grooves Process for broaching of grooves

1979-11-29

1981-10-13

Briggs, William R.

Gear cutting, milling, or planing

Broaching

Process

409 59, 409268, 409287, B23D 3704, B23D 4104

Patent

active

042945682

ABSTRACT:
A series of adjacent grooves with mutually equal pitch are produced by a broaching process wherein two adjacent grooves are simultaneously produced in one broaching stroke by means of two broaching tools, one of which performs the preliminary broaching of a first groove and the other of which performs the finish broaching of a second groove which was preliminarly broached on a previous stroke. A preferred device for execution of the process is formed by utilization of a broaching girder which secures a T-shaped supporting strip, and wherein two tools, one a preliminary broaching tool and the other a final broaching tool, are secured in the angular position of the pitch of the grooves to be produced between respective sides of the T-shaped supporting strip and claws of the broaching girder.

REFERENCES:
patent: 401987 (1889-04-01), Waterman
patent: 3259019 (1966-07-01), Bibbens
patent: 3293988 (1966-12-01), Strempel
patent: 3550504 (1970-12-01), Fulks
patent: 3592103 (1971-07-01), Brown
patent: 3799030 (1974-03-01), Schubert

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