Composite profile

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1984-08-31

1987-02-17

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Assembling or joining

29433, B21D 3900, B23P 1904

Patent

active

046428704

ABSTRACT:
A method for producing a connection between at least one metal part having at least one longitudinally extending groove formed at one surface thereof and a thermoplastic part of plate, strip or bar configuration at least a portion of which, to be disposed in said groove, is adapted to soften or melt on the application thereto of a predetermined level of heat, wherein knurling is provided on at least a portion of the groove wall surface and heat is applied to soften or melt a portion of said thermoplastic part disposed in said groove to have at least a part of the softened or melted portion thereof serve to cap and dispose in spaces about raised and projected portions of said knurling and set thereabout to produce a fixed interconnection of said parts. Preferably there is a use of one or more contact pressure elements comprising a portion of electrolyte copper through which current is applied to produce said melting or softening of the thermoplastic part.

REFERENCES:
patent: 3420026 (1969-01-01), Nolan
patent: 3992769 (1976-11-01), Jackson
patent: 3999354 (1976-12-01), Anter et al.
patent: 4194284 (1980-03-01), Diels et al.
patent: 4245384 (1981-01-01), Egerer

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