<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Laser welding is used in modern industry, having many advantages comparing to traditional welding technologies. Nowadays, industry sectors such as shipbuilding, automotive and aviation can’t be imagined without laser processing technologies. Possibility of increase of welded joint properties, autogenous welding and high level of process automation makes the technology of laser welding perspective part of the industry. Physical multidimensional processes complexity requires a deeper understanding of the impact of laser welding parameters on the quality of welded joints for industrial implementation. The paper presents results of microstructure investigations of laser beam welded stainless steel under various welding parameters. Welded joints was achieved by Ytterbium fiber laser type without the use of the filler material. Material for test was 2205 ferritic-austenitic duplex stainless steel (DSS) plates with thickness of 8 mm in delivery condition. The objectives of this research was to investigate influence of laser welding parameters on weld geometry of butt-welded joints. Investigations of bead shape revealed correlation between laser beam focus position and weld penetration depth.</p></abstract>

Laser welding is used in modern industry, having many advantages comparing to traditional welding technologies. Nowadays, industry sectors such as shipbuilding, automotive and aviation can’t be imagined without laser processing technologies. Possibility of increase of welded joint properties, autogenous welding and high level of process automation makes the technology of laser welding perspective part of the industry. Physical multidimensional processes complexity requires a deeper understanding of the impact of laser welding parameters on the quality of welded joints for industrial implementation. The paper presents results of microstructure investigations of laser beam welded stainless steel under various welding parameters. Welded joints was achieved by Ytterbium fiber laser type without the use of the filler material. Material for test was 2205 ferritic-austenitic duplex stainless steel (DSS) plates with thickness of 8 mm in delivery condition. The objectives of this research was to investigate influence of laser welding parameters on weld geometry of butt-welded joints. Investigations of bead shape revealed correlation between laser beam focus position and weld penetration depth.

Influence of Parameters of Laser Beam Welding on Structure of 2205 Duplex Stainless Steel

Faculty of Mechanical Engineering, Department of Materials Science and Welding Engineering

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Laser welding is used in modern industry, having many advantages comparing to traditional welding technologies. Nowadays, industry sectors such as...

Influence of Parameters of Laser Beam Welding on Structure of 2205 Duplex Stainless Steel

Published Online: Apr 15, 2019

Page range: 21 - 31

DOI: https://doi.org/10.2478/adms-2019-0002

Keywords
stainless steel, duplex, microstructure, laser beam welding

© 2019 M. Landowski, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Influence of Parameters of Laser Beam Welding on Structure of 2205 Duplex Stainless Steel

Published Online: Apr 15, 2019

Page range: 21 - 31

DOI: https://doi.org/10.2478/adms-2019-0002

Keywordsstainless steel, duplex, microstructure, laser beam welding

© 2019 M. Landowski, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
stainless steel, duplex, microstructure, laser beam welding