One Tool Equals Three Processes

A German molder in the Bodensee district is showing off an interesting new co-molding approach that combines hard and soft plastic parts. The process is described in an interesting article by Matt Defosse, editorial director of Modern Plastics Worldwide. Muffler-Plastic of Pfullendorf, Germany, is mating rigid plastics such as polypropylene with a soft material using either an additional injection unit for expandable thermoplastic elastomer or a PUR mixing head. The twist is that the mold, developed by Georg Kaufmann Formenbau, has a second cavity for preforming of film or fabric. Defosse saw a demonstration of the tool making automotive compartment trim.

Illustration shows component structure.

About Doug Smock

Former Chief Editor at Plastics World and Senior Technical Editor Design News
Automotive, Comolding, Design, Europe, Injection Molding, Polyurethane foam ,

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