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.
This slideshow includes several versions of multi-materials machines, two different composites processes including one at microscale, and two vastly different metals processes. Potential game-changers down the line include three microscale processes.
UL is partnering with metals additive manufacturing (AM) supplier EOS to provide AM training to EOS's customers. It's designed to promote correct usage of AM technologies by OEMs and others in manufacturing.
To commemorate Earth Day, we take a look at the state of ocean plastic. If things don't change, by 2050 the oceans will contain more plastic than fish by weight. Here are the problems, as well as some solutions.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.