The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2025
Filed:
Feb. 25, 2020
Hilti Aktiengesellschaft, Schaan, LI;
Andreas Starzengruber, Pettenbach, AT;
Philipp Dörner, Pettenbach, AT;
Hilti Aktiengesellschaft, Schaan, LI;
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 (I) flows. The current (I) through the coil for generating the magnetic field for deflecting the arc (LB) is activated synchronously and in anti-phase with the welding current (I) by a current (I) always being applied to the coil when the welding current (I) is at a minimum, and the coil being switched off or the current (I) through the coil being reduced to a minimum when the welding current (I) is at a maximum.