Journal Article

PUBDB-2026-00617

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The influence of different core-ring intensity distributions on the capillary shape and resulting weld in laser welding of steel

Zaiss, F. (Corresponding author)Extern* ; Powell, J. ; Haas, M.Extern* ; Wahl, J. ; Diegel, C.Extern* ; Schricker, K.Extern* ; Bergmann, J. P.Extern* ; Hummel, M.Extern* ; Spurk, C.Extern* ; Olowinsky, A.Extern* ; Beckmann, F.HZG*Hereon* ; Moosmann, J.HZG*Hereon* ; Hagenlocher, C.Extern* ; Graf, T.

2026
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.optlastec.2025.114495  doi:10.3204/PUBDB-2026-00617

Abstract: Laser welding was carried out using a co-axial core-ring beam, with independent control of the power to the coreand the ring. The welding process was observed using high-power X-rays and high-speed imaging equipment.Adjusting the relative powers of the core and the ring beams was found to have profound effects on the shape ofboth the capillary created and the weld melt pool. Moderate laser power densities in the ring were found toincrease the top diameter of the weld pool and reduce fluctuations in the welding process. High laser powerdensities in the ring led to the creation of a second capillary which largely acted independently of the capillarygenerated by the laser power in the core. At high power densities and welding speeds the two capillaries werealmost completely separated in the direction of travel.

Note: ISSN 0030-3992 not unique: **2 hits**.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Helmholtz-Zentrum Hereon (Hereon)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: BAG-20211050 (BAG-20211050) (BAG-20211050)
3. DFG project 503306266 - Wirkungsweisen ortsangepasster Intensitätsverteilungen auf die beim Laserstrahltiefschweißen zur Spritzerbildung führenden Mechanismen und deren zugrundliegende Wechselwirkungsweisen bei hohen Schweißgeschwindigkeiten (503306266) (503306266)
4. DFG project G:(GEPRIS)236616214 - SFB 1120: Bauteilpräzision durch Beherrschung von Schmelze und Erstarrung in Produktionsprozessen (236616214) (236616214)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2026

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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