US 12,263,527 B2
Computation device, detection system, molding device, computation method, detection method, molding method, computation program, detection program, and molding program
Koki Takeshita, Tokyo (JP)
Assigned to Nikon Corporation, Tokyo (JP); and Technology Research Association For Future Additive Manufacturing, Tokyo (JP)
Appl. No. 17/251,700
Filed by NIKON CORPORATION, Tokyo (JP); and TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING, Tokyo (JP)
PCT Filed Jun. 13, 2018, PCT No. PCT/JP2018/022622
§ 371(c)(1), (2) Date Jul. 12, 2021,
PCT Pub. No. WO2019/239531, PCT Pub. Date Dec. 19, 2019.
Prior Publication US 2021/0387261 A1, Dec. 16, 2021
Int. Cl. B22F 10/80 (2021.01); B22F 12/90 (2021.01); B29C 64/386 (2017.01); B33Y 50/00 (2015.01); G06T 7/00 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B22F 10/80 (2021.01) [B22F 12/90 (2021.01); B29C 64/386 (2017.08); B33Y 50/00 (2014.12); G06T 7/0004 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); G06T 2207/30144 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A calculation device used in a manufacturing apparatus configured to produce a 3D manufactured object from a solidified layer formed by heating a layer-shaped unmelted material layer formed of a powder material by irradiation with an energy beam, the calculation device comprising:
a detection unit configured to obtain a state of the material layer based on a shape of the formed material layer; and
an output unit configured to output information on the state of the material layer obtained by the detection unit to set a manufacturing condition of the manufacturing apparatus,
wherein the manufacturing condition includes at least one of:
a condition of the energy beam with which the unmelted material layer is irradiated to melt the unmelted material layer;
a scanning condition for the energy beam scanning to melt the unmelted material layer;
a condition associated with an atmosphere inside a housing in which at least a part of the unmelted material layer is melted by irradiation with the energy beam;
a supporting unit condition associated with a supporting unit that supports the unmelted material layer and the solidified layer; and
design data associated with a shape of the solidified layer or the 3D manufactured object,
wherein the condition of the energy beam includes at least one condition out of:
an oscillation mode of the energy beam;
a wavelength of the energy beam;
a polarization state of the energy beam; and
an intensity distribution of the energy beam, and
wherein the scanning condition includes at least one condition out of:
a scanning pitch of the energy beam, and
a scanning pass of the energy beam.