US 11,850,687 B2
Metal laminating and modeling method and modeled article
Yasunori Sakai, Hiroshima (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, Tokyo (JP)
Filed by MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, Tokyo (JP)
Filed on Sep. 16, 2020, as Appl. No. 17/022,357.
Claims priority of application No. 2019-176512 (JP), filed on Sep. 27, 2019.
Prior Publication US 2021/0094113 A1, Apr. 1, 2021
Int. Cl. B23K 9/04 (2006.01); B23K 9/095 (2006.01); B33Y 10/00 (2015.01)
CPC B23K 9/042 (2013.01) [B23K 9/095 (2013.01); B33Y 10/00 (2014.12)] 11 Claims
OG exemplary drawing
 
1. A metal laminating and modeling method comprising:
sequentially carrying out a step of laminating a metal layer to form a modeled article, wherein
the step of laminating a metal layer includes
a step of forming blocking beads that are continuous along an outer peripheral shape of the modeled article is formed by arc welding on at least one end portion in a width direction of a target surface on which metal layers are to be formed, and
a step of forming inner beads by arc welding with a current higher than a current in the step of forming blocking beads so as to fill a space on an inside of the blocking beads in the width direction of the target surface, and
in the step of forming blocking beads,
first blocking beads are formed at positions spaced inward in the width direction from an edge portion on an outside in the width direction of the target surface, and then,
in a state in which the target surface is obliquely inclined downward from the outside in the width direction toward an inside in the width direction, second blocking beads are formed adjacent to the first blocking beads on the outside in the width direction of the target surface.