Method and apparatus for forming surfaces on piston rings

Details Method and apparatus for forming surfaces on piston rings Method and apparatus for forming surfaces on piston rings

1987-03-05

1989-09-05

Schmidt, Frederick R.

Turning

Lathe

Vertical

82 18, 82131, 82169, 29269, 2915663, 279 2A, B23B 300

Patent

active

048627771

ABSTRACT:
Apparatus is described for machining the exterior peripheral surface of piston rings for internal combustion engines, particularly piston rings having a transverse shape other than circular, for example, oval or elliptical. A jig arrangement usable with the apparatus is adapted to temporarily deform the workpieces in order to produce exterior surfaces having a conical taper.

REFERENCES:
patent: 1024882 (1912-04-01), Domizi
patent: 1118784 (1914-11-01), Lanchester
patent: 1139650 (1915-05-01), Domizi
patent: 1494913 (1924-05-01), Hughes
patent: 3165011 (1965-01-01), Kelly
patent: 4198066 (1980-04-01), Deprez et al.
patent: 4520700 (1985-06-01), Herzog et al.
patent: 4564914 (1986-01-01), Ballough et al.

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