Three dimensional structure producing device and producing...

Details Three dimensional structure producing device and producing... Three dimensional structure producing device and producing...

2004-02-25

2011-11-22

Ewald, Maria Veronica (Department: 1744)

Plastic article or earthenware shaping or treating: apparatus

With separate apparatus cleaning means

C425S375000, C425S174400, C264S308000, C264S401000, C264S497000

Reexamination Certificate

active

08062020

ABSTRACT:
An apparatus for making a three-dimensional object includes a powdery layer-forming unit for forming a powdery layer on a table and an optical beam-irradiating unit for irradiating an optical beam on a predetermined region of the powdery layer to sinter the predetermined region. The optical beam-irradiating unit is disposed at a position spaced from immediately above an optical beam-irradiating range to obliquely irradiate the optical beam on the powdery layer. Because fumes generated by irradiating and heating the powdery layer with the optical beam rise towards a position immediately above them, the optical beam is irradiated from the position spaced from immediately above the optical beam-irradiating range, thereby reducing a cloud of the optical beam-irradiating unit that may be caused by the fumes.

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English language Abstract of DE 3445613.
English language Abstract of DE 19853947.
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English Language abstract of JP 2002-115004.

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