Method of manufacturing piston rings

Details Method of manufacturing piston rings Method of manufacturing piston rings

1994-09-20

1995-10-31

Cuda, Irene

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

29888074, 29888076, B23P 1500

Patent

active

054617766

ABSTRACT:
A method for the manufacture of piston rings, includes the steps of producing a tube and machining the desired ring free shapes on the inner and outer diameters of the tube providing desired cross sectional profiles by grinding, for example, and then cutting the individual rings from the tube. The ring gaps are preferably formed after cutting the ring from the tube. Coatings on the ring outer surface may be applied and shaped while in tube form.

REFERENCES:
patent: 1329271 (1920-01-01), Hartog
patent: 1951397 (1934-03-01), Covert
patent: 2033093 (1936-03-01), Covert
patent: 2119035 (1938-05-01), Ballard
patent: 2287884 (1942-06-01), Jominy
patent: 2367159 (1945-01-01), Van Der Horst
patent: 3421198 (1969-01-01), Prasse
patent: 4085490 (1978-04-01), McCormick
patent: 4176434 (1979-12-01), Cromwell et al.
patent: 4651395 (1987-03-01), Tanner
"New Development in Piston Rings For The Modern Diesel Engine" McCormick, et al, 1975 SAE Off-Highway Vehicle Mtg. Sep. 8-11, 1975.

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