The news is full of bankruptcies at shoot-and-ship plastics processors, particularly those who serve the price-focused automotive industry. But if you have a specialty, business is great. Take for example, Micromold Products of Yonkers, NY, which specializes in production of PTFE and PVDF parts for handling of corrosive liquids. There’s technology in the design as well as in the handling of the materials. Two patents for fluid handling show the trend. PTFE, either compression molded or formed from shapes, replace glass, which is extremely brittle, inflexible, and subject to manufacturing imperfections. Other proprietary technology is used in the fusion process. PTFE has a high coefficient of expansion and the lowest coefficient of friction of any known solid material. Micromold was started in 1950 by a former scientist at DuPont, where PTFE was commercialized as Teflon. One thing interesting about Micromold: Despite its name, it does no injection molding. Why the name? “That’s lost in the mists of time,” laughs Claude Berman, engineering manager. Micromold’s sales are up about 30 per cent in the past three years.
A composite based on a high-performance PEEK-like resin we told you about two years ago when it was still in R&D has now been licensed by the US Naval Research Laboratory (NRL) for commercial manufacturing.
Microsoft, HP, Dassault, and other industry heavyweights in 3D printing have launched a new 3DP file format, 3MF. The consortium says the spec will more fully describe a 3D model and will be interoperable with multiple applications, platforms, services, and printers.
NASA's been working on several different ongoing projects for 3D-printed rocket engine components in metals and now it's reached another first in aerospace 3D printing: a full-scale, 3D-printed rocket engine component made of copper.
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