Journal of Applied and Computational Mechanics

A Hybrid SVM-RVM Algorithm to Mechanical Properties in the Friction Stir Welding Process

Document Type : Research Paper

Authors

1 Faculty of Mechanical Engineering, Semnan University, Semnan, Iran

2 Department of Materials and Metallurgy Engineering, Birjand University of Technology, Birjand, Iran

Abstract

The friction stir welding method is one of the solid-state welding methods for non-homogeneous metals. In this study, the 5XXX series aluminum sample and pure copper are subjected to four passes friction welding process and then the mechanical and metallurgical properties of the welded samples are compared with the prototype. For this purpose, the effect of welding parameters including rotational speed, forward speed and pin angle of the tool is tested by the full factorial method. In this process, hardness estimation and tensile testing are based on input process parameters in order to obtain mechanical properties is an important issue. For this purpose, a mathematical model of mechanical properties must be defined based on the input process parameters. Due to the complex nature of the effect of input process parameters on mechanical properties, this modeling is a complex mathematical problem in which the use of supervised learning algorithms is considered as an efficient alternative. In this paper, a new combination of Relevance Vector Machine (RVM) and Support Vector Machine (SVM) is presented which has a higher degree of accuracy.

Keywords

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Journal of Applied and Computational Mechanics
Volume 8, Issue 1
January 2022
Pages 36-47