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A Comparative Study on the Effect of Welding Parameters of Austenitic Stainless Steels Using Artificial Neural Network and Taguchi Approaches with ANOVA Analysis

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Department of Mechanical and Metal Technologies, Technical Sciences, Gaziantep University, Gaziantep 27310, Turkey
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Department of Mechanical Engineering, Engineering Faculty, Gaziantep University, Gaziantep 27310, Turkey
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Izmir Vocational School, Dokuz Eylul University, Izmir 35380, Turkey
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Department of Mechanical Engineering, Wichita State University, 1845 Fairmount, Wichita, KS 67260, USA
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Author to whom correspondence should be addressed.
Metals 2018, 8(5), 326; https://doi.org/10.3390/met8050326
Received: 27 March 2018 / Revised: 2 May 2018 / Accepted: 4 May 2018 / Published: 8 May 2018
In order to investigate the structure of welds, austenitic stainless steel (SS) studs with a diameter of 6 mm were welded to austenitic SS plates with a thickness of 5 mm using an arc stud welding (ASW) method. The effects of the welding current, welding time, and tip volume of the stud on the microstructure and ultimate tensile strength (UTS) of the welded samples were investigated in detail. The formation of δ-ferrites was detected in the weld zone because of the higher heat generated during the welding process. Higher welding current and time adversely affected the stud and significantly reduced the UTS of the samples. The UTS of the joints was also estimated using artificial neural network (ANN) and Taguchi approaches. The mathematical formulations for these two approaches were given in explicit form. Experimental results showed that the neural network results are more consistent with experimental results than those of the Taguchi method. Overall, it can be concluded that in order to achieve good welding joints and high strength values, ASW parameters should be investigated properly to determine the optimum conditions for each metal. View Full-Text
Keywords: stud welding; mechanical properties; ANN; Taguchi; ANOVA stud welding; mechanical properties; ANN; Taguchi; ANOVA
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Kurt, H.I.; Oduncuoglu, M.; Yilmaz, N.F.; Ergul, E.; Asmatulu, R. A Comparative Study on the Effect of Welding Parameters of Austenitic Stainless Steels Using Artificial Neural Network and Taguchi Approaches with ANOVA Analysis. Metals 2018, 8, 326.

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