The next-generation materials approaches used in the Chevy Volt concept car last year are still “very much in play”, says Mark Verbrugge, director of the GM Materials and Processes Lab. Costs of materials used in the Volt, which is due for delivery in two years, will be higher than those normally used to ensure light weight, he said in an exclusive interview with Design News. Reducing mass will be an important strategy to meet the mandate that the Volt must go at least 40 miles without a charge. “If you use more material, you will need a bigger battery,” comments Verbrugge. The vehicle must also sell for less than $30,000, per a mandate from Vice Chairman Robert Lutz. The concept car used a polycarbonate roof, an idea Verburgge confirmed is manageable. The Volt also used a molded thermoplastic hood developed by Sabic Innovative Plastics .The 2010 timeline is doable, says Verbrugge. “You can do it, but at what kind of volumes and what kind of value proposition?’
My thinking is that a version of the Volt will debut by the end of 2010. But it will still be very much of a work in progress. The price probably will rise close to $40,000 and the first Volt will be more of a boutique model than a mass market version. But it’s great to see GM press so hard on the concept.
Last week, the bill for reforming chemical regulation, the TSCA Modernization Act of 2015, passed the House. If it or a similar bill becomes law, the effects on cost and availability of adhesives and plastics incorporating these substances are not yet clear.
The latest crop of coating and sealant materials and devices has impressive credentials. Many are designed for tough environments with broad operating temperature ranges, and they often cure faster, require fewer process steps, and produce less waste.
A new program has been proposed for testing and certify 3D printing filaments for emissions safety. To engineers who've used 3D printers at home this is a no-brainer. It's from a consumer on Kickstarter, and targets use in homes and schools.
For the last 50 years, the Metal Powder Industries Federation (MPIF) has sponsored an awards competition for creative solutions to designing and fabricating near-net-shape parts using powder metal (PM) technologies. Here are the seven Grand Prize winners of the 2015 contest.
Graphene 3D Lab has added graphene to 3DP PLA filament to strengthen the material and add conductivity to prints made with it. The material can be used to 3D print conductive traces embedded in 3D-printed parts for electronics, as well as capacitive touch sensors.
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