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
Last week, the bill for reforming chemical regulation, the TSCA Modernization Act of 2015, passed the House. If it or a similar bill becomes law, the effects on cost and availability of adhesives and plastics incorporating these substances are not yet clear.
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For the last 50 years, the Metal Powder Industries Federation (MPIF) has sponsored an awards competition for creative solutions to designing and fabricating near-net-shape parts using powder metal (PM) technologies. Here are the seven Grand Prize winners of the 2015 contest.
Graphene 3D Lab has added graphene to 3DP PLA filament to strengthen the material and add conductivity to prints made with it. The material can be used to 3D print conductive traces embedded in 3D-printed parts for electronics, as well as capacitive touch sensors.
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