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.
Some of the biggest self-assembled building blocks and structures made from engineered DNA have been developed by researchers at Harvard's Wyss Institute. The largest, a hexagonal prism, is one-tenth the size of an average bacterium.
Arevo Labs' end-production 3D printing technology for carbon composites includes a high-temperature, filament fusion printer head design and firmware for use with the company's new carbon fiber and nanotube reinforced high-temperature matrix polymers like PEEK.
Stratasys will buy Solid Concepts and Harvest Technologies and combine them with its RedEye service business. The plan takes aim at end-production manufacturing and will create one of the biggest commercial 3D printing and AM service bureaus.
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