Spatter formation during welding using 1 µm wavelength lasers is still a not satisfyingly solved problem. In most of the published results one single method to quantify the amount of spatters was used. In this paper the results of using different measurement methods to analyze the amount of generated spatters for the same weld will be presented.

The amount of generated spatters was analyzed by applying different welding speeds. By comparing the results it will be shown that the different methods show different results for the same weld. The results show that the loss of weight due to spattering could be reduced but at the expense of a significant increase of the number of spatters and vice versa. The use of multiple measurement methods enables a complete evaluation of a welding process regarding spatter formation.

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