MULTI-MATERIAL DISPENSING FOR IMPROVED PROCESS EFFICIENCY IN POWDER BED ADDITIVE MANUFACTURING
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United States of America Patent
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Dec 11, 2015
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Dec 11, 2015
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An apparatus and method for additive manufacturing components. Build powder is deposited on a build platform in accordance with CAD data, and surrogate powder is deposited in regions where the build powder is not located in order to conserve build powder. An energy source traces over the build powder fusing the build powder into a first layer of the component. The build platform is then lowered so that another layer of powder may be deposited on top of the first layer. This process is repeated until a final component is completed. The surrogate powder is then removed; thus, conserving build powder.
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