TY  - CONF
AU  - Zaiss, Felix
AU  - Haas, Michael
AU  - Wagner, Jonas
AU  - Diegel, Christian
AU  - Schricker, Klaus
AU  - Bergmann, Jean Pierre
AU  - Hummel, Marc
AU  - Olowinsky, Alexander
AU  - Beckmann, Felix
AU  - Moosmann, Julian
AU  - Hagenlocher, Christian
AU  - Graf, Thomas
TI  - Influence of capillary shape on spatter formation during welding with ring-core fiber systems
M1  - PUBDB-2023-04160
SP  - 7
PY  - 2023
AB  - During laser welding, the formation of spatter results from instabilities of the capillary, which are associated with adverse conditions in the melt flow surrounding the capillary and in the vapor flow at the capillary opening. A change of the characteristics of these flows in the melt pool and in the capillary requires a change of the shape of thecapillary and/or the surrounding melt pool. In order to influence the stabilize the capillary the intensity distribution was varied by means of a ring-core fiber system. Analysis of the resulting welds shows a significant effect of the intensity distribution on the stability of the capillary shape and considerable changes in the melt flow direction and velocity. Thesefindings identified an optimum capillary shape, which results from a specific power share in the ring-core fiber combination.
T2  - Lasers in Manufcaturing Conference 2023
CY  - 26 Jun 2023 - 29 Jun 2023, Munich (Germany)
Y2  - 26 Jun 2023 - 29 Jun 2023
M2  - Munich, Germany
LB  - PUB:(DE-HGF)8
UR  - https://bib-pubdb1.desy.de/record/587134
ER  -