This chapter explores the four classes of electric machines having the most bearing on hybrid propulsion systems: the brushless permanent magnet machine in its surface permanent magnet (SPM) ...

Magnetic flux needs to be concentrated at the workpiece surface even at the expense of area. There are three magnetic chuck types - permanent, electromagnetic and electro-permanent. Permanent magnetic ...

Making a surface grinder attachment and permanent magnet from start to finish. Surface grinders are used to make things flat. This DIY one I built is capable of grinding flat within 0.1mm (more like 0 ...

The company, which recently completed a feasibility study, uses hydrogen processing technology to produce a neodymium iron ...

Even today, it remains the most powerful permanent magnet in the world. The two researchers — Japanese engineer Masato Sagawa and American metallurgist John Croat — have been awarded the 44th ...