Selective inhibition of bonding of power particles for layered fabrication of 3-D objects
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United States of America Patent
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Jul 8, 2003
Grant Date -
N/A
app pub date -
Oct 26, 2000
filing date -
Oct 26, 1999
priority date (Note) -
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Abstract
A method for fabricating a three-dimensional (3-D) object is disclosed. The method includes providing a layer of powder material, and selectively depositing bonding inhibitor on selected areas of the layer of powder material. The areas to be deposited with the bonding inhibitor are selected according to a cross-section design of the 3-D object. The method also includes promoting bonding of uninhibited areas of the entire layer of powder material by either sintering or balk deposition of chemical binders. The method further includes repeating the steps of providing a layer of powder material, selectively depositing bonding inhibitor, and promoting bonding until the 3-D object is formed.
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