Metal-reinforced molded-plastic composite structures

Details Metal-reinforced molded-plastic composite structures Metal-reinforced molded-plastic composite structures

1996-02-26

1997-09-30

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428139, 428140, 428132, 293121, 293120, 264273, 264274, B60R 1903, B32B 310, B29C 7000

Patent

active

056724055

ABSTRACT:
A metal-reinforced, molded-plastic composite structure having an end use such as an automobile bumper, the reinforcement being constituted by a sheet of ductile metal having an array of holes punched therein, each bordered by a metal projection. In forming the composite structure, the metal sheet is supported within the cavity of a mold whose shape is appropriate to the end use. Molten plastic injected into the mold is caused to flow through the holes and to envelop the projections therefrom whereby when the plastic solidifies, the metal sheet is then fully integrated with the resultant plastic body and serves to enhance the resistance of the body to impact and other forces which in the absence of the reinforcing sheet would fracture the body.

REFERENCES:
patent: 2064435 (1936-12-01), Loeffler
patent: 3279048 (1966-10-01), Grove et al.
patent: 4172920 (1979-10-01), Kanda et al.
patent: 4234638 (1980-11-01), Yamazoe et al.
patent: 4764409 (1988-08-01), Freeman
patent: 5172920 (1992-12-01), Schlenk
patent: 5290079 (1994-03-01), Syamal

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