Engel is showcasing a new process called “Exjection” that combines injection molding and extrusion. The process allows engineers to design long thin-walled plastic profiles that integrate a variety of elements that now require expensive secondary operations. Metals parts can be inserted in the mold cavity. Films can also be applied in the tool. The new process was described at Molding 2008 by Joachim Kragl, manager of processing technology for Engel of Canada, Guelph, Ontario. During the injection cycle, the mold cavity is moved to the machine axis. At the same time, plastic is injected into the cavity.
Applications proposed for the process include:
A water drain channel out of PP with a length of 3 meters
A cable binder made of PEEK, length 1500 mm
A furniture profile with textile decoration or aluminum decor
An entrance ledge with metallic effect pigmentation
Norway-based additive manufacturing company Norsk Titanium is building what it says is the first industrial-scale 3D printing plant in the world for making aerospace-grade metal components. The New York state plant will produce 400 metric tons each year of aerospace-grade, structural titanium parts.
Siemens and Fraunhofer Institute for Laser Technology have achieved a faster production process based on selective laser melting for speeding up the prototyping of big, complex metal parts in gas turbine engines.
BMW has already incorporated more than 10,000 3D-printed parts in the Rolls-Royce Phantom and intends to expand the use of 3D printing in its cars even more in the future. Meanwhile, Daimler has started using additive manufacturing for producing spare parts in Mercedes-Benz Trucks.
SABIC's lightweighting polycarbonate glazing materials have appeared for the first time in a production car: the rear quarter window of Toyota's special edition 86 GRMN sports car, where they're saving 50% of its weight compared to conventional glass.
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