ADDITIVE MANUFACTURING APPARATUS AND METHOD
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United States of America Patent
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Oct 26, 2017
app pub date -
Sep 30, 2015
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Oct 1, 2014
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Abstract
An additive manufacturing apparatus including a build chamber containing a support for supporting a material bed, a layering device for forming layers of the material bed, a laser or electron beam source for generating a laser or electron beam, a device for steering the laser or electron beam to solidify selected areas of each layer to form a part and a microwave or radio wave source controllable to generate a microwave or radio wave field to differentially heat the material bed based upon the selected areas.
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