METHOD FOR IMPROVED POWDER LAYER QUALITY IN ADDITIVE MANUFACTURING
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United States of America Patent
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May 12, 2016
app pub date -
Oct 7, 2015
filing date -
Oct 7, 2015
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Abstract
Various embodiments of the present invention relate to a method for forming at a three-dimensional article through successively depositing individual layers of powder material that are fused together with at least one energy beam so as to form the article, said method comprising the steps of generating a model of said three-dimensional article; applying a first powder layer on a work table; directing said at least one energy beam from at least one energy beam source over said work table causing said first powder layer to fuse in first selected locations according to said model to form a first cross section of said three-dimensional article; introducing a predetermined pattern laterally separated from said first cross section for reducing thickness variations in a powder layer provided on top of said first cross section.
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