Plastic heat sinks will be getting a huge push on new Boeing aircraft, possibly starting on the Dreamliner. They offer additional opportunities to reduce weight and improve design through net shape injection molding. “This is a coming attraction,” says Dr. Alan G. Miller, director of technology integration on the Dreamliner. “This technology is already in the marketplace, but is just now moving into aircraft. Thermoplastics can become heat sinks through high loadings (30 to 40 percent) of carbon-graphite fiber or ceramics. Suppliers of thermally conductive thermoplastics include LNP Engineering Plastics (GE Plastics), RTP, Cool Plastics, and DuPont On the thermoset side, suppliers include Epoxies, Etc.
This grab-bag of new fasteners and adhesives work with a range of materials they can attach to, as well as a wide variety of applications. Several are for use in consumer applications, such as wearables or other compact electronic assemblies, and some of the adhesives have extended service temperature ranges and cure at room temperature.
Several of the new and noteworthy 3D printers in this slideshow are breaking some boundaries in build volume, new metals printing techniques, or working with high-profile development partners to ensure very high-quality parts and controls.
United Launch Alliance will fly 3D-printed flight hardeware parts on its rockets starting next year with the Atlas V. The company's Vulcan next-gen launch vehicle will have more than 100 production parts made with 3D printing. The main driver? Parts consolidation and 57% lower production costs.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
Although bio-based polymers face challenges from petroleum-based polymers, in certain markets they can displace the petro-based incumbents. Here are six new bio-based and renewable plastics for a variety of applications.
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