Method of manufacturing solid freeform fabrication object and device for manufacturing solid freeform fabrication object
AssigneeRicoh Company, Ltd.
InventorsKiichi Kamoda, Yasuyuki Yamashita, Akira Saito, Sohichiroh Iida, Shinzo Higuchi, Hitoshi Iwatsuki, Nozomu Tamoto, Yasuo Suzuki
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Abstract
A method of manufacturing a solid freeform fabrication object includes forming a layer of resin powder for solid freeform fabrication including particles having a pillar-like form and solidifying a particular area of the layer with irradiation of laser beams, wherein the laser beams have an energy intensity distribution having a top hat-like form.
Claims12
1:
- A method of manufacturing a solid freeform fabrication object, comprising:
- forming a layer of resin powder for solid freeform fabrication including particles having a pillar-like form;
- and
- solidifying a particular area of the layer with irradiation of laser beams;
- wherein the laser beams have an energy intensity distribution having a top hat-like form.
2:
- The method according to claim 1, wherein the pillar-like form is a significantly cylindrical form.
3-5. (canceled)
6:
- The method according to claim 1, wherein the particles have significantly circular planes facing each other with a diameter of from 5 to 100 μm and a height of from 5 to 100 μm.
7:
- The method according to claim 1, wherein the resin powder has a melting point of 100 degrees C. or higher as measured according to ISO 3146 regulation.
The method according to claim 1, wherein the resin powder has a 50 percent cumulative volume particle diameter of from 5 to 200 μm.
9:
- The method according to claim 1, wherein the solid freeform fabrication object has an arithmetic mean deviations of profiles of from 0.5 to 20 μm as measured according to ISO 1302 regulation.
10-12. (canceled)
13:
- The method according to claim 1, wherein the resin powder consists of the particles having a pillar-like form.
14:
- The method according to claim 1, wherein the resin powder has a ratio (Mv/Mn) of a volume average particle diameter to a number average particle diameter of 2.00 or less.
15:
- The method according to claim 1, being a selective laser sintering (SLS) method.
16:
- The method according to claim 1, wherein the resin powder comprises polyethylene terephthalate.
Dependencies are inferred from the claim text.