At NPE 2006, Engel displayed an all-electric tiebarless machine that produced a two-cavity, two-component cover plate. This E-MOTION 110 Combi US molds parts from Liquid Silicone Rubber (LSR) and polybutylene terephthalate (PBT). After the in-line injection units inject the PBT, the second piggyback-mounted units inject the LSR. In addition to the multi-component advantages of new design possibilities, reduced cost and improved quality from the single-step process, the electric approach adds other benifits. "In general, if we compare an all-electric injection molding to hydraulic, the biggest advantage is efficiency, be it multi-component or single component is about 30 to 40 percent less," says Engel's Kragl. In addition, the all-electric machine reduces the noise level by as much as 10 to 15 dB compared to a hydraulic machine.
Design collaboration now includes the entire value chain. From suppliers to customers, purchasing to outside experts, the collaborative design team includes internal and external groups. The design process now stretches across the globe in multiple software formats.
A new high-pressure injection-molding technology produces near-net shape parts with 2-inch-thick walls from high-performance materials like PEEK, PAI, and carbon-filled polymers. Parts show no voids, sinks, or porosity, have more consistent mechanical properties, and are stronger.
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