Method and apparatus for manufacturing a cam shaft

Details Method and apparatus for manufacturing a cam shaft Method and apparatus for manufacturing a cam shaft

1993-06-01

1995-08-01

Cuda, Irene

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

2988808, 29523, B23P 1500

Patent

active

054370973

ABSTRACT:
A method for manufacturing a cam shaft including the steps of preparing cam pieces provided with shaft holes and a tubular shaft member having a hollow portion, forming a plurality of grooves extending in the axial direction of the shaft hole at predetermined positions on the inner circumferential surfaces of the shaft holes of the cam pieces, fitting the shaft member onto the shaft holes of the cam pieces after arranging the cam pieces at the predetermined portions of a support tool and thereafter inserting under pressure a tube expanding tool provided with bulged portions corresponding to the grooves into the hollow portion of the shaft member to bulge and deform the shaft member in the radial direction so that the grooves and bulged portions are confronted with each other, thus to bond the cam pieces and the shaft member together.

REFERENCES:
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patent: 3979811 (1976-09-01), Kammeraad
patent: 4438555 (1984-03-01), Tsumuki et al.
patent: 4781075 (1988-11-01), Yanaji et al.
patent: 4809562 (1989-03-01), Bendoraitas et al.
patent: 4835832 (1989-06-01), Arnold et al.
patent: 4847963 (1989-07-01), Bendoraitas et al.
patent: 5157832 (1992-10-01), Hughes
patent: 5195229 (1993-03-01), Hughes
patent: 5220727 (1993-06-01), Hochstein

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