FINITE ELEMENT ANALYSIS OF EQUIVALENT STRESS INDUCED BY SURFACE PUNCHING SEVERE DEFORMATION AIMED AT ALLOYING ON LOW-CARBON STEEL

Xiangyang Mao, Jianyu Sun (), Hongxing Wang (), Xiuming Zhao () and Zhangzhong Wang
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Xiangyang Mao: School of Materials Science and Engineering, Nanjing Institute of Technology, No.1 Hongjing Road, Nanjing 211167, P. R. China†Jiangsu Key Laboratory of Advanced Structural, Materials and Application Technology, No.1 Hongjing Road, Nanjing 211167, P. R. China
Jianyu Sun: School of Materials Science and Engineering, Nanjing Institute of Technology, No.1 Hongjing Road, Nanjing 211167, P. R. China
Hongxing Wang: School of Materials Science and Engineering, Nanjing Institute of Technology, No.1 Hongjing Road, Nanjing 211167, P. R. China
Xiuming Zhao: School of Materials Science and Engineering, Nanjing Institute of Technology, No.1 Hongjing Road, Nanjing 211167, P. R. China
Zhangzhong Wang: School of Materials Science and Engineering, Nanjing Institute of Technology, No.1 Hongjing Road, Nanjing 211167, P. R. China†Jiangsu Key Laboratory of Advanced Structural, Materials and Application Technology, No.1 Hongjing Road, Nanjing 211167, P. R. China

Surface Review and Letters (SRL), 2020, vol. 27, issue 01, 1-6

Abstract: The punching severe deformation is a recently developed surface treatment that forms alloying by inducing a greater compressive equivalent stress field. Despite its proven utility, there has been little attention devoted to the accurate modeling of this process. In this work, a 3D-DEFORM finite element analysis was used to model the equivalent stress distribution induced by the punching process on a low-carbon steel surface. A majority of the controlling parameters of the process were taken into account. The effect of punching number, punching tip size, punching velocity and punching pressure on the equivalent stress distribution was evaluated. The results show that an equivalent stress distribution much higher than the conventional surface severe deformation can be obtained by optimizing the punching severe deformation process. The reported simulation results can successfully predict the punching severe deformation used to create an alloying layer on the surface of low-carbon steel.

Keywords: Punching severe deformation; DEFORM finite element; equivalent stress; alloying (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1142/S0218625X19500963

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