CPC B23K 9/201 (2013.01) [B23K 9/16 (2013.01)] | 20 Claims |
1. 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 projects a visual pattern onto the base material through the gap.
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