Modeling And Simulation Of Drawing Process On Aluminium AA7075

Yuearajan, Santhiran (2013) Modeling And Simulation Of Drawing Process On Aluminium AA7075. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project presents the modeling and simulation of drawing process on aluminium AA7075. Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch. Drawing dies force the material to flow in conjunction with the movement of the punch, which causes plastic deformation to its structure. The material, AA7075 is one of the most important structural materials extensively used in automobile and aerospace industries. Extensive research on its formability aspects is required to develop useful components of complex shapes out of this material. One of the ways to measure the formability is to find its drawability characteristics. In this study, the significance of three important deep drawing process parameters namely blank temperature, die temperature and punch velocity on the drawing characteristics of aluminium AA7075 sheet was determined. The combination of finite element analysis method and Taguchi analysis was used to determine the influence of process parameters. Simulations were carried out as per orthogonal array using DEFORM 3D software. Based on the predicted deformation of deep drawn cup and analysis of Taguchi and multiple regression analysis (MRA) it was observed that blank temperature has greatest influence on the formability of aluminium material.

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