Camshaft composition

Details Camshaft composition Camshaft composition

1990-01-18

1991-05-07

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428469, 75241, 75243, 75237, 419 29, 74 1R, B22F 300

Patent

active

050136119

ABSTRACT:
A camshaft having a tubular steel shaft and a sintered cam piece joined to the shaft. The sintered cam piece has iron tetroxide film at its surface. The camshaft is produced by assembling a powder compact to the steel shaft to provide a camshaft assembly, sintering the assembly to provide an integral assembly, correcting bending to the assembly, annealing the assembly, grinding the cam piece and effecting vaporization treatment to the assembly at a temperature lower than the annealing temperature.

REFERENCES:
patent: 4388114 (1983-06-01), Suganuma et al.
patent: 4518563 (1985-05-01), Suganuma et al.
"Heat Treatment Guidebook", May 15, 1983, pp. 150, 160.
"Heat Treatment Guidebook", Apr. 1, 1984, pp. 148-151.
"Heat Treatment to Steel", Oct. 1, 1969, p. 691.

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