Details
| Original language | English |
|---|---|
| Article number | 042039 |
| Number of pages | 8 |
| Journal | Journal of laser applications |
| Volume | 33 |
| Issue number | 4 |
| Early online date | 1 Nov 2021 |
| Publication status | Published - Nov 2021 |
| Externally published | Yes |
| Event | International Congress of Applications of Lasers and Electro-Optics 2021 - Online Duration: 18 Oct 2021 → 20 Oct 2021 Conference number: 40 |
Abstract
Duplex stainless steels are used in many application fields due to their outstanding performance with respect to strength, toughness, and corrosion resistance. These properties are based on a microstructure proportion of at least a proportion of 30% austenite. To meet the requirements of the microstructure and a high productivity, a high-power and precise heat controlled welding procedure like laser beam-submerged arc hybrid welding is necessary. In this study, laser beam-submerged hybrid welding processes are developed for butt joints of duplex stainless steel S31803 (t = 16 mm) using a disk laser beam source with a maximum output laser beam power of PL = 16 kW. The aims of these developments are to achieve stable, efficient one-layer welding processes for joining weld seams with high quality regarding the microstructure. Therefore, the welding parameters, laser beam power, welding speed, and wobble amplitude are investigated using visual inspections and metallographic analyses. To increase the microstructure proportion of austenite, the laser beam is wobbled linear and transversal to the welding direction using amplitudes up to 5 mm. As results of welding process developments, stable and efficient one-layer hybrid welding processes were archived at a high welding speed of vW = 1.0 m/min and a wobble amplitude of WA = 2.5 mm. The weld seams meet the requirement of at least a proportion of 30% austenite. Without using laser beam wobbling, the weld seam does not achieve the austenite proportion required at this welding speed.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Engineering(all)
- Biomedical Engineering
- Physics and Astronomy(all)
- Instrumentation
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In: Journal of laser applications, Vol. 33, No. 4, 042039, 11.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Investigations on high-power laser beam-submerged arc hybrid welding of thick duplex stainless steel using laser beam wobbling
AU - Lahdo, Rabi
AU - Nothdurft, Sarah
AU - Hermsdorf, Jörg
AU - Urbanek, Patrick
AU - Puschmann, Markus
AU - Riedel, Frank
AU - Overmeyer, Ludger
AU - Kaierle, Stefan
N1 - Conference code: 40
PY - 2021/11
Y1 - 2021/11
N2 - Duplex stainless steels are used in many application fields due to their outstanding performance with respect to strength, toughness, and corrosion resistance. These properties are based on a microstructure proportion of at least a proportion of 30% austenite. To meet the requirements of the microstructure and a high productivity, a high-power and precise heat controlled welding procedure like laser beam-submerged arc hybrid welding is necessary. In this study, laser beam-submerged hybrid welding processes are developed for butt joints of duplex stainless steel S31803 (t = 16 mm) using a disk laser beam source with a maximum output laser beam power of PL = 16 kW. The aims of these developments are to achieve stable, efficient one-layer welding processes for joining weld seams with high quality regarding the microstructure. Therefore, the welding parameters, laser beam power, welding speed, and wobble amplitude are investigated using visual inspections and metallographic analyses. To increase the microstructure proportion of austenite, the laser beam is wobbled linear and transversal to the welding direction using amplitudes up to 5 mm. As results of welding process developments, stable and efficient one-layer hybrid welding processes were archived at a high welding speed of vW = 1.0 m/min and a wobble amplitude of WA = 2.5 mm. The weld seams meet the requirement of at least a proportion of 30% austenite. Without using laser beam wobbling, the weld seam does not achieve the austenite proportion required at this welding speed.
AB - Duplex stainless steels are used in many application fields due to their outstanding performance with respect to strength, toughness, and corrosion resistance. These properties are based on a microstructure proportion of at least a proportion of 30% austenite. To meet the requirements of the microstructure and a high productivity, a high-power and precise heat controlled welding procedure like laser beam-submerged arc hybrid welding is necessary. In this study, laser beam-submerged hybrid welding processes are developed for butt joints of duplex stainless steel S31803 (t = 16 mm) using a disk laser beam source with a maximum output laser beam power of PL = 16 kW. The aims of these developments are to achieve stable, efficient one-layer welding processes for joining weld seams with high quality regarding the microstructure. Therefore, the welding parameters, laser beam power, welding speed, and wobble amplitude are investigated using visual inspections and metallographic analyses. To increase the microstructure proportion of austenite, the laser beam is wobbled linear and transversal to the welding direction using amplitudes up to 5 mm. As results of welding process developments, stable and efficient one-layer hybrid welding processes were archived at a high welding speed of vW = 1.0 m/min and a wobble amplitude of WA = 2.5 mm. The weld seams meet the requirement of at least a proportion of 30% austenite. Without using laser beam wobbling, the weld seam does not achieve the austenite proportion required at this welding speed.
UR - http://www.scopus.com/inward/record.url?scp=85118798683&partnerID=8YFLogxK
U2 - 10.2351/7.0000524
DO - 10.2351/7.0000524
M3 - Article
AN - SCOPUS:85118798683
VL - 33
JO - Journal of laser applications
JF - Journal of laser applications
SN - 1042-346X
IS - 4
M1 - 042039
T2 - International Congress of Applications of Lasers and Electro-Optics 2021
Y2 - 18 October 2021 through 20 October 2021
ER -