Process for preparing composite parts

Details Process for preparing composite parts Process for preparing composite parts

B - Operations, Transporting

29

C

18/690, 18/967

B29C 45/14 (2006.01) B23P 11/00 (2006.01)

Patent

CA 1130070

ABSTRACT OF THE DISCLOSURE This invention relates to a method of forming a composite article of shaped metal and moulded synthetic plastics material, comprising disposing a metal blank in a closable injection mould adapted to receive a metal blank, the said mould being provided with means whereby the metal blank may be shaped, cut or shaped and cut; introducing mouldable synthetic plastics material into the mould; and simultaneously with the shaping or cutting of the metal blank by the said shaping or cutting means the mouldable plastics material in the mould is moulded onto the metal blank to form a shaped and moulded composite article. The present invention is Bassett upon an idea of applying the fact that the mold part of a usual injection molting apparatus can be utilized also as a press molding machine, and the fact of carrying out the press processing step which is most often employed to process hard materials, at the time of shaping synthetic resins. As a result, the simplicity of steps ant improvement in the accuracy are attained to a great extent and reduction in the percentage of rejection is achieved when compared to the known two-step metal insert method.

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