US 12,005,529 B2
Method for manufacturing laminated molding, and laminated molding
Shinji Sato, Hyogo (JP); Takeshi Yamada, Hyogo (JP); Tatsuya Fujii, Hyogo (JP); Masatoshi Hida, Hyogo (JP); Shuo Huang, Hyogo (JP); and Eisuke Kurosawa, Hyogo (JP)
Assigned to KOBE STEEL, LTD., Hyogo (JP)
Appl. No. 17/287,771
Filed by KOBE STEEL, LTD., Hyogo (JP)
PCT Filed Oct. 21, 2019, PCT No. PCT/JP2019/041292
§ 371(c)(1), (2) Date Apr. 22, 2021,
PCT Pub. No. WO2020/085295, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. 2018-200279 (JP), filed on Oct. 24, 2018.
Prior Publication US 2021/0379685 A1, Dec. 9, 2021
Int. Cl. B23K 9/04 (2006.01); B23K 15/00 (2006.01); B33Y 10/00 (2015.01); B33Y 40/00 (2020.01); B33Y 80/00 (2015.01)
CPC B23K 9/04 (2013.01) [B23K 15/0086 (2013.01); B33Y 10/00 (2014.12); B33Y 40/00 (2014.12); B33Y 80/00 (2014.12)] 3 Claims
OG exemplary drawing
 
1. A method for manufacturing an additively-manufactured object, comprising:
an additively-manufacturing step of building a layered body by depositing a plurality of weld beads obtained by melting and solidifying a filler metal, the layered body having an opening along a forming direction of a first weld bead of the plurality of weld beads and an internal space surrounded by the plurality of weld beads; and
a closing step of forming a closing wall portion connecting an edge portion of the opening with a second weld bead of the plurality of weld beads for closing,
wherein
in the additively-manufacturing step, at least a third weld bead of the plurality of weld beads is deposited on a base to build side wall portions facing each other, multiple weld beads of the plurality of weld beads having different width dimensions are deposited laterally from an upper end of a side portion of the side wall portions to build a connecting wall portion having the opening, the edge portion of the opening on the connecting wall portion is built by depositing a narrow weld bead of the plurality of weld beads having a bead width smaller than a bead width of another weld bead of the plurality of weld beads that builds another portion, and the opening is formed with a width dimension larger than a bead width of the second weld bead, and
in the closing step, and the closing wall portion having a width dimension larger than the bead width of the second weld bead is formed by the second weld bead to close the opening.