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Journal of Material Sciences & Engineering

ISSN: 2169-0022

Open Access

Experimental Determination of Anisotropic Work Hardening of Aluminum Sheet Under Plane Stress

Abstract

Vaishak NL, Dilip Kumar K* and Neelakantha VL

Metal forming process such as extrusion, rolling, sheet metal forming etc. where the work piece are subjected to finite strain and stress. Metal forming is an ancient art and is a vast subject of closely guarded of secrets in antiquity. In many respects the old craft traditions have been retained until present time. Unfortunately, a series of problem arises when commissioning a new production or when changes made from one well known material to another. Current trends towards adaptive control and flexible manufacturing systems call for more precise definition and understanding of the process. This will ensure much better control over a production, dimension and quality. Practical test to determine the best tool shape and forming condition can be very expensive and wasteful of tool and work piece material. Many cases of simple component forming operations may result in cracking during production or become weakened by high residual stress. In view of above, aluminum sheet metal forming has been active subject for the past three decades and current trends indicate importance of the sheet metal forming operation, since it has applications in automotive and aero industries. Major problem in aluminum sheet metal forming operation were deformability and spring back effect. Deformation errors and spring back effect are dependent on the number of parameters such as die and tool geometry, friction condition, loading condition and anisotropic properties of the metal. Computer modeling of sheet metal forming of aluminum sheet metal will help in predicting deformity error and spring back effect which saves lot of money and time due to the prediction gives accurate results.

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Citations: 3677

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