US 11,654,510 B2
Additive manufacturing apparatus
Nobuyuki Sumi, Tokyo (JP); Shun Kayashima, Tokyo (JP); Satoshi Hattori, Tokyo (JP); and Seiji Uozumi, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/640,831
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Oct. 25, 2019, PCT No. PCT/JP2019/041965
§ 371(c)(1), (2) Date Mar. 7, 2022,
PCT Pub. No. WO2021/079499, PCT Pub. Date Apr. 29, 2021.
Prior Publication US 2022/0266378 A1, Aug. 25, 2022
Int. Cl. B23K 26/03 (2006.01); B23K 26/21 (2014.01)
CPC B23K 26/03 (2013.01) [B23K 26/21 (2015.10)] 12 Claims
OG exemplary drawing
 
1. An additive manufacturing apparatus comprising:
a modeler to perform modeling by applying a material in melted form to a workpiece; and
a monitoring circuitry to monitor occurrence of a drop caused by the material after being melted and remaining at a leading end of the material but before being melted to the workpiece, wherein
when the drop remaining at the leading end of the material has occurred after the modeling is started and before the modeling is completed, the modeler interrupts the modeling, removes the drop from the leading end of the material, and resumes the modeling to be completed without the drop at the leading end of the material, and
the monitoring circuitry determines whether or not the drop has occurred based on a dimension of the material after being melted remaining at the leading end of the material but before being melted to the workpiece.