Environmental arguments aside, the weak link in the electric car story might be a soft metal called neodymium. You may have heard of Nd:YAG lasers. The Nd stands for neodymium. Another major use is in permanent magnets, such as those used in electric cars. China controls most neodymium production and is now restricting exports and boosting tariffs. As a result of China’s actions and demand from electric car makers, neodymium prices are now close to $90/kg, up from $19.12 in 2009.
Efforts to find new global sources for the metal are accelerating. A Japanese joint venture will look for neodymium in Vietnam. An article in the Denver Post says there is a new “gold rush” for rare earth metals such as neodymium in Colorado and other Western states.
And not surprisingly, engineers are at work trying to improve the performance of induction motors in which magnetism is created by applying an electrical charge. The problem with induction motors is their poor efficiency and their large size compared to motors using permanent magnets. Continental AG, the largest noncaptive electric motor supplier for autos, is also working on alternative technical solutions.
The 100-percent solar-powered Solar Impulse plane flies on a piloted, cross-country flight this summer over the US as a prelude to the longer, round-the-world flight by its successor aircraft planned for 2015.
GE Aviation expects to chop off about 25 percent of the total 3D printing time of metallic production components for its LEAP Turbofan engine, using in-process inspection. That's pretty amazing, considering how slow additive manufacturing (AM) build times usually are.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.