Electron-beam machining (EBM) is a process where high-velocity electrons concentrated into a narrow beam are directed toward the work piece, creating heat and vaporizing the material. EBM can be used for very accurate cutting or boring of a wide variety of metals. Surface finish is better and kerf width is narrower than those for other thermal cut...
Found on
http://en.wikipedia.org/wiki/Electron_beam_machining
(from the article `machine tool`) The EBM technique is used for cutting fine holes and slots in any material. In a vacuum chamber, a beam of high-velocity electrons is focused on a ...
Found on
http://www.britannica.com/eb/a-z/e/19
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