POWDER HANDLING SYSTEM FOR USE IN POWDER BED FUSION ADDITIVE MANUFACTURING
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United States of America Patent
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Issued Date -
Nov 30, 2017
app pub date -
May 24, 2017
filing date -
May 24, 2016
priority date (Note) -
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Abstract
A powder handling system that includes a first powder deposition device for depositing a primary powder on a surface at a predetermined speed; and a second powder deposition device for depositing a secondary powder onto the primary powder in at least two directions relative to the surface, wherein the second powder deposition device includes a reservoir for containing the secondary powder; and a rotating shaft connected to the reservoir, wherein the rotating shaft includes a speed of rotation, an angle of rotation, a number of rotations, and a notch geometry, and wherein the rotating shaft is adapted to deposit the secondary powder onto the primary powder at a predetermined rate of deposition, and wherein the predetermined rate of deposition is controlled by adjusting the speed of rotation of the shaft, adjusting the angle of rotation of the shaft, adjusting the number of rotations of the shaft, adjusting the notch geometry of the shaft, or a combination thereof.
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