US 12,011,779 B2
Additive manufacturing apparatus, additive manufacturing system, additive manufacturing method, storage medium, and learning device
Nobuyuki Sumi, Tokyo (JP); Shun Kayashima, Tokyo (JP); Kenji Iriguchi, Tokyo (JP); and Seiji Uozumi, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 18/265,684
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Feb. 24, 2021, PCT No. PCT/JP2021/006808
§ 371(c)(1), (2) Date Jun. 7, 2023,
PCT Pub. No. WO2022/180673, PCT Pub. Date Sep. 1, 2022.
Prior Publication US 2023/0390865 A1, Dec. 7, 2023
Int. Cl. B23K 26/082 (2014.01); B23K 26/342 (2014.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01)
CPC B23K 26/082 (2015.10) [B23K 26/342 (2015.10); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12)] 20 Claims
OG exemplary drawing
 
1. An additive manufacturing apparatus for producing a shaped article by adding, to a workpiece, a material melted by emission of a beam, the additive manufacturing apparatus comprising:
a machining head to emit the beam to the workpiece;
a feeder to feed the material to a melt pool formed on the workpiece by the emission of the beam;
a memory; and
a controller, connected to the memory, to determine a machining path along which the machining head is caused to move with respect to the workpiece, and to output a command to move the machining head, wherein
the controller outputs the command to move the machining head along the machining path obtained by correction performed based on a moving direction of the machining head, the correction being made for a positional deviation of the melt pool caused by a bias in an energy distribution due to an effect of a shape of a spot of the beam on the workpiece and to an effect of the moving direction.