US 12,459,039 B2
AM apparatus for manufacturing a fabricated object and method for testing an irradiation position of a beam in the AM apparatus
Hiroyuki Shinozaki, Tokyo (JP)
Assigned to EBARA CORPORATION, Tokyo (JP)
Appl. No. 17/610,877
Filed by EBARA CORPORATION, Tokyo (JP)
PCT Filed Mar. 19, 2020, PCT No. PCT/JP2020/012181
§ 371(c)(1), (2) Date Nov. 12, 2021,
PCT Pub. No. WO2020/235204, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 2019-095153 (JP), filed on May 21, 2019.
Prior Publication US 2022/0212261 A1, Jul. 7, 2022
Int. Cl. B22F 10/80 (2021.01); B22F 12/41 (2021.01); B23K 26/042 (2014.01); B23K 26/06 (2014.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/00 (2015.01)
CPC B22F 10/80 (2021.01) [B22F 12/41 (2021.01); B23K 26/042 (2015.10); B23K 26/0626 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/00 (2014.12)] 3 Claims
OG exemplary drawing
 
1. An Additive Manufacturing (AM) apparatus configured to manufacture a fabricated object, the AM apparatus comprising:
a chamber defining a space used to manufacture the fabricated object;
a base plate disposed in the chamber and configured to support a material of the fabricated object;
a beam source configured to irradiate the material on the base plate with a beam;
a computer configured to determine an irradiation position of the beam based on three-dimensional data of the fabricated object;
a scanning mechanism configured to move the beam according to the determined irradiation position;
a detector configured to detect an irradiation position of the beam applied into the chamber; and
an evaluator configured to compare the determined irradiation position and the detected irradiation position,
wherein the computer is configured to:
prepare the three-dimensional data of the fabricated object to be manufactured;
determine the irradiation position of the beam based on the prepared three-dimensional data;
apply the beam by putting the AM apparatus into operation according to the determined irradiation position of the beam without the presence of the material of the fabricated object;
detect a position of the applied beam; and
compare the determined irradiation position of the beam and the detected position of the beam.