Method of connecting a tubular member with an annular member

Details Method of connecting a tubular member with an annular member Method of connecting a tubular member with an annular member

1987-10-28

1989-11-28

Moon, Charlie T.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

294211, 74567, 419 48, B23P 1500

Patent

active

048828254

ABSTRACT:
A method of securing a tubular member within an annular cam member for the manufacture of a cam shaft is provided, including the steps of forming a cam member from sintered materials with at least two axially extending grooves being provided in the inner surface of the cam member adjacent the portion of the cam member having the greatest thickness such that a radially projecting ridge is defined between adjacent grooves, fitting the tubular member into the cam member, supplying a working fluid to the interior of the tubular member and applying pressure to the fluid so as to expand the tubular member while maintaining substantially the same wall thickness within the cam member until the ridge bites into the outer surface of the expanding tubular member and becomes tightly engaged therewith. The pressure applied to expand the tubular member is less than that required to fully expand the tubular member along the inner surface of the cam member.

REFERENCES:
patent: 3183394 (1965-05-01), Hipszer
patent: 3467180 (1969-09-01), Pensotti
patent: 3553809 (1971-01-01), Yamada et al.
patent: 3977068 (1976-08-01), Krips
patent: 4069573 (1978-01-01), Rogers, Jr. et al.
patent: 4236923 (1980-12-01), Takahashi et al.
patent: 4265388 (1981-05-01), Takahashi et al.
patent: 4293995 (1981-10-01), Jordan
patent: 4332073 (1982-06-01), Yoshida
patent: 4368571 (1983-01-01), Cooper, Jr.

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