US 11,980,964 B2
Member and method of manufacturing the same
Kenichiro Kunitomo, Tokyo (JP); Shuho Koseki, Tokyo (JP); Hiroshi Shiratori, Tokyo (JP); and Hirotsugu Kawanaka, Tokyo (JP)
Assigned to PROTERIAL, LTD., Tokyo (JP)
Appl. No. 17/053,814
Filed by Proterial, Ltd., Tokyo (JP)
PCT Filed Jul. 2, 2019, PCT No. PCT/JP2019/026331
§ 371(c)(1), (2) Date Nov. 9, 2020,
PCT Pub. No. WO2020/009115, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 2018-128913 (JP), filed on Jul. 6, 2018.
Prior Publication US 2021/0237204 A1, Aug. 5, 2021
Int. Cl. B23K 26/00 (2014.01); B23K 11/00 (2006.01); B23K 26/144 (2014.01); B23K 26/342 (2014.01); B33Y 10/00 (2015.01)
CPC B23K 26/0093 (2013.01) [B23K 11/0013 (2013.01); B23K 26/144 (2015.10); B23K 26/342 (2015.10); B33Y 10/00 (2014.12)] 16 Claims
OG exemplary drawing
 
6. A member comprising:
a first metallic region made of a first material; and
a second metallic region made of a second material that is a different material from the first material,
wherein, in a cross-sectional view,
an interface between the first metallic region and the second metallic region is represented by a line having a first curved line protruding toward the first metallic region and a second curved line protruding toward the first metallic region, and
an angle at a cross point of the first curved line and the second curved line is equal to or larger than 70 degrees and smaller than 180 degrees, the angle being made by a tangent line of the first curved line and a tangent line of the second curved line in a region of the first metallic region;
wherein a dent portion is formed in the first metallic region,
the second metallic region is formed inside the dent portion, and
the first metallic region is provided with a protrusion extending toward an upper surface of the dent portion, in the middle of a plane extending from a bottom surface of the dent portion to an upper surface of the first metallic region out of the dent portion.