Tooling system and method for broaching engine components

Details Tooling system and method for broaching engine components Tooling system and method for broaching engine components

1991-11-25

1993-07-06

Bilinsky, Z. R.

Gear cutting, milling, or planing

Broaching

Process

407 18, 409279, B23D 3722

Patent

active

052248046

ABSTRACT:
A segmented broach bar for machining axially separated coaxial bearing bores contained within a component for an internal combustion engine includes axially separated pilot segments and axially separated broaching segments, with at least one of the pilot segments being positioned between a pair of broaching segments. A broach bar has a lead end which first engages the bearing bores, with the broaching and pilot segments having diameters which are sized progressively greater as the distance from the lead end increases, with the broach and pilot segments being sized such that each broach segment produces a bore diameter accommodating the immediately following pilot segment.

REFERENCES:
patent: 1485652 (1924-03-01), Wakefield
patent: 1939820 (1933-12-01), Lapointe
patent: 4294568 (1981-10-01), Lipowsky et al.
patent: 4382731 (1983-05-01), Rigdon
patent: 4693813 (1987-09-01), Takeshita et al.
patent: 4768904 (1988-09-01), Schmid

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