One of my favorite themes in recent months has focused on how engineers can fight rising materials costs with new designs. Metals costs are still about double what they were four years ago. It looks like steel prices will be rising another 10 to 20 percent in coming months based on what’s happening in iron ore and coking coal contracts. Contract prices for the coal used as fuel in blast furnaces are rising 200 percent.
One way to mitigate rising metals prices is to consider net shape forming processes, such as metal injection molding. This is still a relatively small business, mostly because of its newness. Specialist molders mold metal powder mixed with plastic in injection molding machines that are only slightly modified. Green parts go into a furnace where the plastic is molded out, creating a “nearly” isotropic part. Metal molding makes a lot of sense when it competes against mutli-step processes, say where you are welding to a stamping to a machined part. Metal molding is best suited for complex parts under 100 grams.
I’ll be writing about metal molding in detail in coming months. For now, a great resource is the Metal Injection Molding Association, which is one of six trade groups organized within the Metal Powder Industries Federation.
Inspired by the hooks a parasitic worm uses to penetrate its host's intestines, the Karp Lab has invented a flexible adhesive patch covered with microneedles that adheres well to wet, soft tissues, but doesn't cause damage when removed.
Researchers at the Missouri University of Science & Technology have designed a new nanoscale material that can transmit light faster than the 186,000 miles per second it usually takes to travel through air.
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A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is