Abstract
The reduction of spatter formation for deep penetration laser welding with the application of welding speeds over 8 m/min is the subject of the presented proceeding. Thereby, two laser spots are spatially superposed. Due to the application of the second laser spot an enlargement of the capillary was detected. Furthermore, a significant reduction of the loss of mass due to spatter was achieved. Moreover, the influence of the lateral displacement of the second spot relative to the first laser was analyzed.
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