Method for producing a hollow composite members

Details Method for producing a hollow composite members Method for producing a hollow composite members

1996-05-30

1997-09-09

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

294211, 29446, 29523, 2988809, 298881, B23P 1500

Patent

active

056643276

ABSTRACT:
A process for producing hollow composite members, comprising the steps of: providing an outer material layer; providing a tubular supporting member within the outer layer; initially plastically expanding the supporting member to produce a connection between the outer layer and the supporting member; and subsequently plastically expanding the supporting member in a central region while simultaneously axially shortening the supporting member, so that a tensile prestress is generated in the circumferential direction and a compressive prestress is generated in the longitudinal direction of the outer layer.

REFERENCES:
patent: 4368571 (1983-01-01), Cooper, Jr.
patent: 4538337 (1985-09-01), Holbrook et al.
patent: 5052845 (1991-10-01), Maus et al.

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