Lou, recyclable and recycled composites and plastics are a subject that's getting more attention all the time. We covered it here: http://www.designnews.com/author.asp?section_id=1392&doc_id=271489 Since recycled polymers are already being used in heavy truck parts, bridges, and Ford's car seats, among many other uses, it's clear that they must meet the same performance standards as any other plastics. Making materials recyclable is also being investigated. Recycling composites, though, especially carbon fiber-reinforced ones, is a lot more difficult. One of the biggest problems in recycling plastics is when they're made of multiple materials, as composites are. The companies mentioned in the story at the link I gave are pioneers. Some are also working on making carbon composites recyclable.
Ann, I was just talking to my son this morning about cars made from carbon fiber composites and comparing them to cars made from aluminium. Since steel and aluminium are easily recyclable, it makes sense to use them when appropriate. On the other hand, if more composite materials are used I think that there should be standards for recyclability. This material seems to be a good first step.
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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