Increasingly novel materials applications are emerging to provide lightweight thermal management functions in aircraft (such as the Boeing Dreamliner) and oher applications. One example is a metal matrix composite developed by a company called CPS Technologies in Norton, MA. In a typical component, a silicon carbide structure is formed in a plunger-type, low-pressure injection molding machine that uses a carrier feedstock that freezes near zero C. The carrier is removed by a phase management sublimation in which the carrier never becomes a liquid. The product can then either be sintered or infiltrated with material such as aluminum.
CPS says that AlSiC produces hermetic packaging that is much lighter than CuMo and CuW, yet has similar thermal conductivity and expansion coefficient. It also costs less.
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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