Title: Finite element analysis of the deformation behaviour of pure aluminium in repetitive corrugation-straightening and constrained groove pressing

Authors: Farhad Rahimi; Bagher Mohammad Sadeghi; Masoud Ahmadi

Addresses: Materials Processing Simulation Laboratory, School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran ' School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran ' Department of Mechanical Engineering, Bilkent University, 06800 Bilkent, Ankara, Turkey

Abstract: Repetitive corrugation-straightening (RCS) and constrained groove pressing (CGP) are two promising severe plastic deformation techniques for sheet metallic materials. There are differences in amount of imposed plastic strain, hence, it is important to compare the deformation mode in these two techniques. In the present paper, the effect of RCS and CGP on the deformation behaviour of pure aluminium is studied. The effective parameters are analysed using finite element analysis (FEA) for one pass of deformation. The computer simulations are carried using DEFORM-3D and to verify the FEA results, a comparison with previous literatures is made. It is observed that filling ratio of the die is higher for CGP. Additionally, the deformed work-piece endured more plastic strain in CGP and the effective strain is more homogenously distributed in this technique.

Keywords: severe plastic deformation; SPD; constrained groove pressing; CGP; repetitive corrugation and straightening; RCS; finite element analysis; FEA.

DOI: 10.1504/IJMTM.2018.095038

International Journal of Manufacturing Technology and Management, 2018 Vol.32 No.6, pp.598 - 609

Received: 28 Jul 2015
Accepted: 11 May 2016
Published online: 01 Oct 2018 *

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