Comparative Metallurgical and Mechanical of Nd: YAG laser welding of Austenitic stainless steels

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Kiani Pejman; GHOREISHI MAJID

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Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2020 | Volume:50 | Issue:1 (90) Page(s): 187-198

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Title

Comparative Metallurgical and Mechanical of Nd: YAG laser welding of Austenitic stainless steels

Author(s)

Kiani Pejman | GHOREISHI MAJID | Issue Writer Certificate

Keywords

Nd:YAG Laser Welding

Austenitic stainless Steel

Design of experiment

Optimization

Full Factorial Design

Abstract

Laser welding is a significant method for welding all kinds of alloys. High speed welding, low distortion and easy automation are the advantages of this method. In this study, pulsed Nd: YAG laser butt joint welding was performed on 304 and 316 Austenitic stainless Steels workpieces. All the parameters were designed by Full Factorial Method which the center point was repeated for 10 times. Henceforth, the effect of power, pulse duration, laser velocity and chemical composition on width and depth of welding area, ultimate tensile strength, elongation and Ferrite Number were studied. The welding process was performed in 1. 2 and 1. 8 KW as power, 3 and 4. 4 ms as pulse duration and 0. 2 and 0. 8 mm/s as velocity of welding. Thus, the upper level of input parameters were selected as the optimal case. This was done by surveying all the samples to achieve maximum UTS, size of the weld and Ferrite Number. In these conditions, output error for width of weld, depth of weld, U. T. S, elongation and Ferrite Number was 2, 5, 1. 6, 25 and 2%.

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APA: Copy

Kiani, Pejman, & GHOREISHI, MAJID. (2020). Comparative Metallurgical and Mechanical of Nd: YAG laser welding of Austenitic stainless steels. JOURNAL OF MECHANICAL ENGINEERING, 50(1 (90) ), 187-198. SID. https://sid.ir/paper/270128/en

Vancouver: Copy

Kiani Pejman, GHOREISHI MAJID. Comparative Metallurgical and Mechanical of Nd: YAG laser welding of Austenitic stainless steels. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2020;50(1 (90) ):187-198. Available from: https://sid.ir/paper/270128/en

IEEE: Copy

Pejman Kiani, and MAJID GHOREISHI, “Comparative Metallurgical and Mechanical of Nd: YAG laser welding of Austenitic stainless steels,” JOURNAL OF MECHANICAL ENGINEERING, vol. 50, no. 1 (90) , pp. 187–198, 2020, [Online]. Available: https://sid.ir/paper/270128/en

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