公开(公告)号：US12220775B2

公开(公告)日：2025-02-11

申请号：US17431354

申请日：2020-02-25

Applicant: Hilti Aktiengesellschaft

Inventor： Andreas Starzengruber ,  Philipp Dörner

IPC: B23K9/20 ,  B23K9/08 ,  B23K9/09 ,  B23K9/095

Abstract: A stud welding process and a stud welding device for welding a stud to a workpiece are provided, wherein an arc (LB) is generated between the surface of the stud that faces the workpiece and the workpiece by using a pulsed welding current (Is), and the arc (LB) is deflected by a magnetic field which is generated by a coil through which a current (IA) flows. The current (IA) through the coil for generating the magnetic field for deflecting the arc (LB) is activated synchronously and in anti-phase with the welding current (Is) by a current (IA) always being applied to the coil when the welding current (Is) is at a minimum, and the coil being switched off or the current (IA) through the coil being reduced to a minimum when the welding current (Is) is at a maximum.

公开(公告)号：US11850689B2

公开(公告)日：2023-12-26

申请号：US17416453

申请日：2019-11-29

Applicant: Hilti Aktiengesellschaft

Inventor： Stefan Wolfsgruber ,  Philip Dörner ,  Andreas Starzengruber ,  Uwe Popp ,  Klaus Bertsch

IPC: B23K9/20 ,  B23K9/16

CPC classification number: B23K9/201 ,  B23K9/16

Abstract: An apparatus for welding a welding stud to a specified location of a base material, comprising a stud holder, comprising an inert gas cover, which surrounds the stud holder while forming a gap between the stud holder and the inert gas cover, and comprising a projection device, which is intended to project a visual pattern onto the base material through the gap.