Method of manufacturing a hollow cam shaft

Details Method of manufacturing a hollow cam shaft Method of manufacturing a hollow cam shaft

1985-01-16

1986-09-23

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

291495R, 72367, 74567, 228182, B21D 3900, B23P 1100

Patent

active

046126953

ABSTRACT:
The method of manufacturing a lightweight, low cost hollow cam shaft includes the steps of forming an integral journal portion in a hollow pipe member by inwardly deforming a portion of the pipe member, such as by coining or spinning, the outer surface of the deformed portion being the bearing surface. Annular grooves formed immediately adjacent the inwardly deformed portion allow residue from an optional finish-grinding operation to escape. Cam members having fitting holes are fixedly mounted on undeformed pipe portions, or on outwardly deformed pipe portions.

REFERENCES:
patent: 2472261 (1949-06-01), Mueller
patent: 2892254 (1959-06-01), Garvin
patent: 3845667 (1974-11-01), Honrath et al.
patent: 3869938 (1975-03-01), Schlotterbeck et al.
patent: 3999277 (1976-12-01), Hamada
patent: 4293995 (1981-10-01), Jordan

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