3-phase crankshaft machining

Details 3-phase crankshaft machining 3-phase crankshaft machining

1990-09-12

1992-01-07

Bishop, Steven C.

Gear cutting, milling, or planing

Milling

Process

82106, 409166, 409244, 409269, B23D 3722, B23C 306, B23B 518

Patent

active

050785567

ABSTRACT:
The present invention relates to a method and an apparatus for the finish-machining of the bearing diameters, particularly the main bearing diameters and of the adjoining cheek side surfaces on crankshafts and similar workpieces in a single chucking. In order that this machining can be carried out rapidly and nevertheless with a high quality of production, the following method steps are carried out, one after the other: milling of the cheek side surfaces to nominal size up to the bearing diameter; turning of the bearing diameter down to a small oversize; turning-broaching of the bearing diameters to nominal size in order to obtain a good quality surface, and possibly turning/turning-broaching of recesses, clearance cuts and undercuts in the region of the bearings.

REFERENCES:
patent: 2173609 (1939-09-01), Groene
patent: 2525127 (1950-10-01), Groene et al.
patent: 4269551 (1981-05-01), Kralowetz

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