US 11,833,612 B2
Metal member and method of manufacturing the same
Tetsuji Egawa, Okazaki (JP); Eita Niisato, Toyota (JP); Jun Kitagawa, Seto (JP); and Masahiro Onoda, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jun. 17, 2022, as Appl. No. 17/807,683.
Application 17/807,683 is a continuation of application No. 15/975,905, filed on May 10, 2018, granted, now 11,364,569.
Claims priority of application No. 2017-121457 (JP), filed on Jun. 21, 2017.
Prior Publication US 2022/0314368 A1, Oct. 6, 2022
Int. Cl. B23K 26/26 (2014.01); B23K 9/025 (2006.01); B23K 33/00 (2006.01); B23P 15/00 (2006.01); B23K 26/28 (2014.01); B23K 26/60 (2014.01); B23K 26/00 (2014.01); B23K 28/02 (2014.01); B23K 101/18 (2006.01); B23K 103/04 (2006.01)
CPC B23K 26/26 (2013.01) [B23K 9/025 (2013.01); B23K 26/0093 (2013.01); B23K 26/28 (2013.01); B23K 26/60 (2015.10); B23K 28/02 (2013.01); B23K 33/00 (2013.01); B23K 33/002 (2013.01); B23P 15/00 (2013.01); B23K 2101/18 (2018.08); B23K 2103/04 (2018.08)] 4 Claims
OG exemplary drawing
 
1. A method of manufacturing a metal member, the method comprising:
preparing a first plate and a second plate; and
making the first plate and the second plate abut against each other in at least one butt portion and welding the first plate and the second plate together,
wherein in the butt portion, a length from a first end to a second end of a welding boundary line between the first plate and the second plate is longer than a length of a straight line connecting the first end to the second end of the welding boundary line,
wherein in the welding, the first plate and the second plate are made to abut against each other in a first butt portion and a second butt portion and are welded to each other to form an intermediate product;
the method further comprises bending the intermediate product formed in the welding;
the intermediate product includes
a first welding boundary line between the first plate and the second plate in the first butt portion,
a second welding boundary line between the first plate and the second plate in the second butt portion, and
a curved portion that is interposed between the first butt portion and the second butt portion and connects the first butt portion and the second butt portion to each other;
a length from a first end to a second end of the first welding boundary line is longer than a length of a straight line connecting the first end and the second end of the first welding boundary line;
the second welding boundary line is a shortest line connecting a first end and a second end of the second welding boundary line to each other along a surface of the second plate; and
in the bending, the intermediate product is disposed in a bending die such that the second welding boundary line and a bending line are perpendicular to each other and the second welding boundary line is parallel to a direction in which a final product obtained by bending the intermediate product is removed from the bending die and the first welding boundary line and the curved portion are on the same side with respect to the bending line.