Automated Laser Welding of AISI 304 Stainless Steel by Disk Laser

• Autorzy: Lisiecki A. , Kurc-Lisiecka A.

Identyfikatory

DOI

10.24425/amm.2018.125091

• Języki publikacji: EN

Abstrakty

EN

The automated laser welding process of 2.0 mm thick sheets of AISI 304 stainless steel was investigated. The disk laser with a beam spot diameter of 200 μm was used for bead-on-plate and next for autogenous butt joints welding. The influence of basic welding parameters such as laser power, welding speed, and focal spot position on fusion zone configuration, quality of joints, microstructure changes, and microhardness distribution across the joints were analysed and presented in this paper. The results have shown that stiffening of the 2.0 mm thick sheets is crucial for providing high quality and reproducibility of butt joint in a case of AISI 304 stainless steel due to relatively low thermal conductivity and simultaneously high thermal expansion. Relevant drop of microhardness in the weld zone was observed. The mean value of microhardness of the base metal was 230 HV0.1, while the microhardness in fusion zone of the test welds was ranged from 130 to 170 HV0.1. Additionally the microstructure changes in the weld metal and also in the heat affected zone of test joints is described.

Słowa kluczowe

EN

autogenous laser welding; butt joints; stainless steel; AISI 304; austenitic steel

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 4
• Strony: 1663--1672
• Opis fizyczny: Bibliogr. 28 poz., fot., rys., tab.

Twórcy

autor

Lisiecki A.

• Silesian University of Technology, Faculty of Mechanical Engineering, Department of Welding Engineering, 18a Konarskiego Str., 44-100 Gliwice, Poland

autor

Kurc-Lisiecka A.

• WSB University in Poznań, Faculty of WSB University in Chorzów, Scientific Institute of Entrepreneurship and Innovation, Department of Management Engineering, 29 Sportowa Str., 41-506 Chorzów, Poland

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).