Interested in mechatronics? There are some very cool examples coming out of Germany using a plastics process called “outsert” molding. In outsert molding, plastic pieces are molded into a frame of metal or some other material. Two examples are new infusion pumps made by medical device OEM B. Braun of Germany. The process begins with the creation of a frame for the pump that consists of a chassis, bolt, flap and pump chassis. High-performance plastic parts are molded onto the plate in a one-shot process. The biggest advantages are part reduction (up to two-thirds) and elimination of secondary operations. The Braun parts are made at the TB&C Outsert Center in Herborn, Germany. TB&C’s use of outsert techniques dates to 1985 when its parent, Phillips Metallwaren, was forced by Asian customers to dramatically reduce costs on car auto tape drives. TB&C says reject levels with the process are low at 25 ppm. Electromechanical structures are molded by TB&C for large roof systems, automated teller machines as well as mediacl devices with microtransmission.
At this year's MD&M West show, lots of material suppliers are talking about new formulations for wearables and things that stick to the skin, whether it's adhesives, wound dressings, skin patches and other drug delivery devices, or medical electronics.
Researchers at Lawrence Livermore National Laboratory have published two physics-based models for the selective laser melting (SLM) metals additive manufacturing process, so engineers can understand how it works at the powder and scales, and develop better parts with less trial and error.
Materials and assembly methods on exhibit at next week's MD&M West and other co-located shows will include some materials you should see, as well as several new and improved processes. Here's a sampling of what you can expect.
The Food & Drug Administration has approved a 3D-printed, titanium, cranial/craniofacial patient-specific plate implant for use in the US. The implant is 3D printed using Arcam's electron beam melting (EBM) process.
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