Mesin pemercepat elektron atau sering disebut EBM (Electron Beam Machine) adalah satu jenis teknologi yang telah dikembangkan dalam dua dekade yang lalu sebagai sumber radiasi pada proses ir…Full description
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Justamente, como “creer es crear” y “decretar es concretar”, existe la necesidad de entender cuál es el mecanismo por el cual el hombre a través de su mente puede atraer los electrones que “…Descripción completa
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ELCTRON BEAM MACHINING By Rakesh Rak esh Chander Saini rcsaini.blogspot.com
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Electron Beam Machining (EBM) •
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Similar to LBM except laser beam is replaced by high velocity electrons. EBM is a metal removal process by a high velocity focused stream of electrons. As the electrons strike the work piece with high velocity ,
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Electron Beam Machining (EBM) •
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The production of free electrons ( negatively charged particles) are obtained by electron gun. Due to pattern of electrostatic field produced by grid cup, electrons are focused and made to flow in the form of a converging beam
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Electron Beam Machining (EBM) •
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A magnetic deflection coil is used to make electron beam circular and to focus electron beam at a point ( localized heating) The process is carried out in a vacuum chamber to prevent electrons from colliding with molecules of
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Advantages of EBM •
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There is no mechanical contact between tool and work piece, hence no tool wear. Very small holes can be machined in every type of material with high accuracy Drilling of extremely small diameter holes down to 0.002 in.
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Disadvantages of EBM •
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Cost of equipment is high. Rate of material removal is low. It can used for small cuts only. Vacuum requirements limits the size of work piece.
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Application of EBM •
Drilling of holes in pressure differential devices used in nuclear reactors, air craft
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