US 12,325,095 B2
Method and device for joining elements to components
Bah Eissara, Giessen (DE); Gerson Meschut, Paderborn (DE); and Christian Reis, Giessen (DE)
Assigned to Newfrey LLC, New Britain, CT (US)
Filed by NEWFREY LLC, New Britain, CT (US)
Filed on Dec. 22, 2022, as Appl. No. 18/145,305.
Application 18/145,305 is a continuation of application No. 16/448,199, filed on Jun. 21, 2019, granted, now 11,541,476.
Application 16/448,199 is a continuation of application No. PCT/EP2017/081272, filed on Dec. 1, 2017.
Claims priority of application No. 102016125899.8 (DE), filed on Dec. 23, 2016; and application No. 17178341 (EP), filed on Jun. 28, 2017.
Prior Publication US 2023/0125406 A1, Apr. 27, 2023
Int. Cl. B23K 26/14 (2014.01); B23K 9/20 (2006.01); B23K 9/235 (2006.01); B23K 26/00 (2014.01)
CPC B23K 9/20 (2013.01) [B23K 9/235 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A joining method for joining by welding a weld stud to a workpiece, the method comprising the following steps:
providing a drawn arc welding device and a plasma gas cleaning device;
providing the weld stud and providing the workpiece, the workpiece including a joining surface;
cleaning the joining surface using a plasma gas cleaning method including the cleaning steps of:
supplying a flow of a compressed gas to the plasma gas cleaning device;
generating in the plasma gas cleaning device a non-transferred arc;
generating with the non-transferred arc a plasma from the compressed gas;
directing the plasma onto the joining surface to remove contaminants thereon; and
joining the weld stud to the workpiece by drawn arc welding using the drawn arc welding device including forming of a transferred electric arc between the weld stud and the joining surface.