TY  - CONF
AU  - Zaiss, Felix
AU  - Haas, Michael
AU  - Powell, John
AU  - Wahl, Johannes
AU  - Diegel, Christian
AU  - Schricker, Klaus
AU  - Bergmann, Jean Pierre
AU  - Hummel, Marc
AU  - Spurk, Christoph
AU  - Olowinsky, Alexander
AU  - Beckmann, Felix
AU  - Moosmann, Julian
AU  - Hagenlocher, Christian
AU  - Graf, Thomas
TI  - Reducing capillary depth fluctuations in high-speed laser welding of stainless steel using multi-core laser technology
JO  - Procedia CIRP
VL  - 124
SN  - 2212-8271
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - PUBDB-2024-06124
SP  - 413-417
PY  - 2024
AB  - Laser welding was carried out in AISI304 (X5CrNi18-10) stainless steel using a multi-core fiber laser. High-speed X-ray imaging was used to monitor the process. When employing core-power only (400W) at high welding speeds (12m/min), the capillary depth was found to be inconsistent. The capillary penetration into the material varied from approximately 0.8 mm to approximately 0.2 mm, with fluctuation periods of between single milliseconds and tens of milliseconds. Employing a 0.5:0.5 ring-core power distribution (390W:390W) to achieve the same penetration (0.8mm) was found to reduce fluctuations in the depth of the welding process and the capillary penetration. Possible reasons for this reduction in depth fluctuations are discussed together with a detailed description of the resulting changes in weld cross-section. 
T2  - 13th CIRP Conference on Photonic Technologies 
CY  - 15 Sep 2024 - 19 Sep 2024, Fürth (Germany)
Y2  - 15 Sep 2024 - 19 Sep 2024
M2  - Fürth, Germany
LB  - PUB:(DE-HGF)16 ; PUB:(DE-HGF)8
DO  - DOI:10.1016/j.procir.2024.08.144
UR  - https://bib-pubdb1.desy.de/record/615369
ER  -