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3D FEM Analysis of Triaxiality Stress Behavior of Al 2024 Aluminium Alloy Extrusion

Author(s):

Kamlesh Sahu , Sagar Institute of Research and Technology-Excellence; Dharmendra Tyagi, Sagar Institute of Research and Technology-Excellence; Avinash Pandey, LNCTS Bhopal

Keywords:

Extrusion, FEM Analysis, Metal Forming, Triaxiality Stress

Abstract

Extrusion is an important metal forming operation. It is a manufacturing process used to create long objects of a fixed cross sectional profile. The extrusion process is based on the plastic deformation of a material due to compressive and shears forces only. Basically, this procedure is based on the reducing and shaping the cross section of piece of metal squeezing the material through an orifice or a die. The finite element analysis of temperature and extrusion load during the extrusion of aluminium 2024 alloy is carried out in the present work. The optimal set of extrusion variables for the chosen responses was obtained. The experimental runs were conducted based on the Taguchi's L9 design matrix. ANOVA is employed to identify the significance of variables on the responses. Also, the percentage of contributions of each variable on each response was represented graphically. The set of optimal process variables was obtained with the help of Taguchi optimization method on the basis of minimum S/N ratio. These optimal process variables help to extrude the chosen aluminium alloy with minimum stress, min. Triaxiality stress, min. temp. & using minimum extrusion load. Hence, the quality of the extruded product improved with minimum energy.

Other Details

Paper ID: IJSRDV6I40238
Published in: Volume : 6, Issue : 4
Publication Date: 01/07/2018
Page(s): 220-223

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