Details
| Original language | English |
|---|---|
| Pages (from-to) | 415-419 |
| Number of pages | 5 |
| Journal | Procedia CIRP |
| Volume | 111 |
| Early online date | 6 Sept 2022 |
| Publication status | Published - 2022 |
| Externally published | Yes |
| Event | 12th CIRP Conference on Photonic Technologies, LANE 2022 - Erlangen, Germany Duration: 4 Sept 2022 → 8 Sept 2022 |
Abstract
With increasing demand for pure copper welds in the production of electronic connections, various approaches were pursued to reduce the challenging spatter and melt ejection susceptibility of laser beam welding processes in copper materials. One is the use of adjustable intensity profiles of infrared laser beam sources with a combination of a core and ring beam, which enables a wider and more stable keyhole in deep penetration welding and makes a reduction of spattering and melt ejections possible. In order to research the influence of different power distributions with ring powers up to 4000 W and core powers up to 2000 W on the process spattering, welding experiments were evaluated with a stereo camera system for spatter detection using Cu-OF. In addition, the effects of different power distributions, focal positions and welding speeds on the weld metal dimensions and connection widths as well as the corresponding variance were investigated with a multivariate design of experiments based approach.
Keywords
- adjustable intensity profiles, copper, Laser beam welding, parameter influence, spattering
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Procedia CIRP, Vol. 111, 2022, p. 415-419.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Multivariate parametric study on laser beam welding of copper lap joints using adjustable intensity profiles
AU - Rinne, J.
AU - Nothdurft, S.
AU - Hermsdorf, J.
AU - Kaierle, S.
AU - Overmeyer, L.
N1 - Funding Information: The authors thank Coherent, Inc. for kindly providing the laser beam source used.
PY - 2022
Y1 - 2022
N2 - With increasing demand for pure copper welds in the production of electronic connections, various approaches were pursued to reduce the challenging spatter and melt ejection susceptibility of laser beam welding processes in copper materials. One is the use of adjustable intensity profiles of infrared laser beam sources with a combination of a core and ring beam, which enables a wider and more stable keyhole in deep penetration welding and makes a reduction of spattering and melt ejections possible. In order to research the influence of different power distributions with ring powers up to 4000 W and core powers up to 2000 W on the process spattering, welding experiments were evaluated with a stereo camera system for spatter detection using Cu-OF. In addition, the effects of different power distributions, focal positions and welding speeds on the weld metal dimensions and connection widths as well as the corresponding variance were investigated with a multivariate design of experiments based approach.
AB - With increasing demand for pure copper welds in the production of electronic connections, various approaches were pursued to reduce the challenging spatter and melt ejection susceptibility of laser beam welding processes in copper materials. One is the use of adjustable intensity profiles of infrared laser beam sources with a combination of a core and ring beam, which enables a wider and more stable keyhole in deep penetration welding and makes a reduction of spattering and melt ejections possible. In order to research the influence of different power distributions with ring powers up to 4000 W and core powers up to 2000 W on the process spattering, welding experiments were evaluated with a stereo camera system for spatter detection using Cu-OF. In addition, the effects of different power distributions, focal positions and welding speeds on the weld metal dimensions and connection widths as well as the corresponding variance were investigated with a multivariate design of experiments based approach.
KW - adjustable intensity profiles
KW - copper
KW - Laser beam welding
KW - parameter influence
KW - spattering
UR - http://www.scopus.com/inward/record.url?scp=85141897339&partnerID=8YFLogxK
U2 - 10.1016/j.procir.2022.08.178
DO - 10.1016/j.procir.2022.08.178
M3 - Conference article
AN - SCOPUS:85141897339
VL - 111
SP - 415
EP - 419
JO - Procedia CIRP
JF - Procedia CIRP
SN - 2212-8271
T2 - 12th CIRP Conference on Photonic Technologies, LANE 2022
Y2 - 4 September 2022 through 8 September 2022
ER -