US 12,285,802 B2
Method of manufacturing additively manufactured object
Shuji Tanigawa, Tokyo (JP); Masaya Hatanaka, Tokyo (JP); Ryuta Ito, Tokyo (JP); Hiroshi Makigano, Tokyo (JP); and Taro Tokutake, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Apr. 28, 2022, as Appl. No. 17/731,811.
Claims priority of application No. 2021-083983 (JP), filed on May 18, 2021.
Prior Publication US 2022/0371093 A1, Nov. 24, 2022
Int. Cl. B22F 10/62 (2021.01); B23H 1/04 (2006.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); C23F 1/02 (2006.01)
CPC B22F 10/62 (2021.01) [B23H 1/04 (2013.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); C23F 1/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of manufacturing an additively manufactured object, the method comprising:
checking, for an additively manufactured object including a plurality of internal passages, presence or absence of a deposit on an inner wall surface of each of the plurality of internal passages; and
selectively removing the deposit from an internal passage in which the deposit has been detected in the checking, among the plurality of internal passages,
wherein in the removing, the deposit on the inner wall surface of the internal passage is removed by performing electrical discharge machining using an electrode including a base portion covered with an insulating material and a tip portion exposed without being covered with the insulating material.