Device And Method Of Generatively Manufacturing A Three-Dimensional Object With Working Field Limitation
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United States of America Patent
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Issued Date -
Nov 17, 2011
app pub date -
May 12, 2011
filing date -
May 12, 2010
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a device and a method of generatively manufacturing a three-dimensional object in a device, comprising the following steps: layerwise applying a powdery material (11) onto a support (5) or a previously applied layer after having lowered the support (5) by the amount of one layer thickness; selectively solidifying the powdery material (11) by energetic radiation (8, 8') at locations corresponding to the object (3); repeating the steps a) and b), until the object (3) is completed. The device defines a two-dimensional maximum working field (6) with a maximum length (L) and a maximum width (B), in which the powdery material (11) can be applied and solidified. According to the invention, a reduced working field (13) is additionally realized, in which the powdery material (11) is applied and radiated by less than the maximum length (L) and/or by less than the maximum width (B) of the maximum working field (6).
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