Two-pole medical forceps are under development in Germany using an exciting new metal to ceramic co-molding process. Two-component plastic injection molding is widely used to mate dissimilar materials, such as polypropylene and thermoplastic elastomer. Co-molding has not worked well for powder materials, such as ceramic and metal, because of widely differing shrinkage rates, particularly in the post-mold sintering process used to remove binders. But researchers at the Fraunhofer Institute for Ceramic Technologies and Systems (IKTS) in Dresden, Germany have identified compatible feedstocks through simulation studies. They also say that particle density is critical in developing shrink-compatible powder feedstocks. In one of their most interesting projects, they have prototyped conductive forceps in which a metal layer conducts electricity and ceramics provide insulation. Current flows to a human body through one arm and returns through another. In currently used forceps, current flows into the patient’s body, and then back into the forceps. The purpose of the current is to cauterize tissue. The current entering the body is described as minimal. But the new technology would be even safer. The forceps are being tested now by various partners in Germany.
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.
Design engineers play a big role in selecting both suppliers and materials for their designs. Our most recent Design News Materials Survey says they continue to be highly involved, in some ways even more than the last time we asked to peek inside their cubicles.
Daihatsu is one of the first carmakers to customize car exteriors using 3D printing's mass customization capabilities. Effect Skins -- small exterior bumper and fender panels in different colors and textures -- can be ordered for its Copen convertible.
Several new products in this group of new adhesives, coatings, and sealants are formulated to protect sensitive electronic components, or to seal components of commercial and military aircraft. Others are designed to operate in tough, messy, dirty oil & gas operations, or for rotary applications and motors.
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