A study by two business school professors makes the case that green manufacturing is not an expense; in fact it’s a money-maker. It took 20 years, but a Subaru plant in Indiana that makes 800 cars a day has reduced by waste 47 percent and makes use of 99.9 percent of the remaining waste. Nothing goes to a landfill, and dumpsters have been converted to recycling bins. One of the biggest problems was a toxic solvent used to flush painting systems. Subaru now distills impurities from used solvent so that it can be re-used. The impurities go to a company that makes coatings for steel industry ladles. There are a thousand examples, but one of the more intriguing (odder?) is to use all cafeteria food waste in a circular composting track. One day’s waste would be placed next to the last day’s in a plan under study. Special worms devour the waste, leaving rich soil behind. Or, I guess, Subaru could just hire workers who clear their plates.
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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