US 11,925,995 B2
Multi point projection welding method and loading-welding system for car-body assembly using the same
Hyun Woo Lee, Ulsan (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Sep. 8, 2022, as Appl. No. 17/940,631.
Application 17/940,631 is a division of application No. 16/594,635, filed on Oct. 7, 2019, granted, now 11,471,971.
Application 16/594,635 is a division of application No. 14/829,571, filed on Aug. 18, 2015, granted, now 10,471,534, issued on Nov. 12, 2019.
Claims priority of application No. 10-2014-0185837 (KR), filed on Dec. 22, 2014.
Prior Publication US 2023/0001503 A1, Jan. 5, 2023
Int. Cl. B23K 11/11 (2006.01); B23K 11/14 (2006.01); B23K 11/30 (2006.01); B23K 11/31 (2006.01); B23K 37/04 (2006.01); B23K 101/18 (2006.01); B23K 101/00 (2006.01)
CPC B23K 11/11 (2013.01) [B23K 11/14 (2013.01); B23K 11/3009 (2013.01); B23K 11/314 (2013.01); B23K 37/0435 (2013.01); B23K 2101/006 (2018.08); B23K 2101/18 (2018.08)] 3 Claims
OG exemplary drawing
 
1. A multi point projection welding method comprising:
loading a component panel having one or more protrusions formed thereon onto a vehicle body panel such that the one or more protrusions of the component panel contacts the vehicle body panel at one or more welding positions;
applying pressure to the vehicle body panel at a first contact position using a vehicle body pressurizing tip and applying pressure to the component panel at a second contact position using a component pressurizing tip while the component panel and the vehicle body panel contact each other; and
supplying current to the vehicle body pressurizing tip and the component pressurizing tip such that the one or more protrusions of the component panel and a portion of the vehicle body panel contacting the one or more protrusions at one or more contact positions are welded onto each other while the vehicle body pressurizing tip and the component pressurizing tip apply pressure to the vehicle body panel and the component panel, respectively,
wherein at least one of the first contact position and the second contact position is different from each contact position of the one or more protrusions contacting the portion of the vehicle body panel, and
wherein the one or more welding positions are located between the first contact position and the second contact position.