Engineers are looking for higher quality metal alloys to solve design problems. Two examples of current substitution trends: Titanium is replacing copper-nickel alloys in large desalinization plants. In a separate development, metallurgical-bonded, nickel-based alloy clad pipe is replacing conventional corrosion-resistant alloy pipe in sour gas applications. The trends were reported by L. Patrick Hassey, CEO of Allegheny Technologies, in a recent conference call with analysts. Hassey retired on May 1.
NASA's MAVEN spacecraft has entered Mars' atmosphere, carrying instruments to help Earthlings figure out what happened to it. Launched last November, the spacecraft arrived at the red planet right on time after a journey of 442 million miles.
Airbus Defence and Space has 3D printed titanium brackets for communications satellites. The redesigned, one-piece 3D-printed brackets have better thermal resistance than conventionally manufactured parts, can be produced faster, cost 20% less, and save about 1 kg of weight per satellite.
At IMTS last week, Stratasys introduced two new multi-materials PolyJet 3D printers, plus a new UV-resistant material for its FDM production 3D printers. They can be used in making jigs and fixtures, as well as prototypes and small runs of production parts.
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