Finite Element Analysis and Experimental Study on the Effect of Extrusion Ratio during Hot Extrusion Process of Aluminium Matrix Composites

Dhanalakshmi Sathishkumar; P. Sivakumar; K. Shanmuga Sundaram; S. Anand

doi:10.14429/dsj.67.11535

Dhanalakshmi Sathishkumar Combat Vehicles Research and Development Establishment, Chennai
P. Sivakumar Combat Vehicles Research and Development Establishment, Chennai
K. Shanmuga Sundaram College of Engineering, Anna University, Guindy, Chennai
S. Anand Central Institute of Plastics Engineering and Technology, Guindy

DOI: https://doi.org/10.14429/dsj.67.11535

Keywords: Aluminium matrix Composite, Finite element analysis, Extrusion ratio, Plastic strain, Strain rate

Abstract

The finite element (FE) analysis on the effect of extrusion process parameter namely, extrusion ratio at different billet temperatures on the plastic strain and strain rate of aluminium matrix composite during hot extrusion process has been dealt. The dynamic explicit FE code in ANSYS 15.0 workbench was used for simulation. The FE analysis was carried out on the SiC reinforced aluminium matrix composites for three extrusion ratios 4:1, 8:1 and 15:1, for the billet temperatures in the range 350 °C - 450 °C in steps of 50 °C. The plastic strain and strain rate were found to increase with increase in the extrusion ratio. A minimum strain and strain rate was found to occur at the billet temperature of 450 °C. The silicon carbide particles reinforced aluminium matrix composites were then extruded at the optimised temperature of 450 °C for various extrusion ratios as mentioned above. The effect of extrusion ratio on the microstructure and surface quality of extruded rod was studied.

Author Biographies

Dhanalakshmi Sathishkumar, Combat Vehicles Research and Development Establishment, Chennai

Ms Dhanalakshmi Sathishkumar, has completed MS (Engg.) from Dept. of Metallurgical and Materials Engg., IIT Madras, in 2006. Currently working as Scientist ‘F’ at Advanced Technologies Division, Combat Vehicles Research and Development Establishment, Chennai. She has contributed in the development of light weight, high strength materials and nano technology for armoured fighting vehicles. She has published more than 25 technical papers in Conferences and Journals. She is a recipient of DRDO Technology Group Award- 2007 and DRDO Technology Day Award-2016.

P. Sivakumar, Combat Vehicles Research and Development Establishment, Chennai

Dr P. Sivakumar has completed his PhD (Machine Design) from IIT, Madras, in 2011. He is a Distinguished Scientist and is currently Director, Combat Vehicles Research & Development Establishment, Chennai. His research areas include design and development of AFV automatic transmission in the range of 150 hp-1500 hp, combat aircraft transmission, conceptualisation of configuration for main battle tanks both present and future, infantry combat vehicles, armoured repair and recovery vehicles, self-propelled catapult vehicles, carrier command post and unmanned ground vehicles.

K. Shanmuga Sundaram, College of Engineering, Anna University, Guindy, Chennai

Dr K. Shanmuga Sundaram, has obtained his doctorate in the area of Fracture Mechanics from Anna University. Currently working as Professor and Head, Engineering Design Division, College of Engg., Guindy, Anna University, Chennai. He has contributed in : Engineering design, hydraulics and pneumatics, cad, additive manufacturing, product design and development, FEA, electro magnetic forming, metal matrix composites, dental ceramics. He has authored a text book ‘Hydraulics and Pneumatics – Understanding Made Easy’.

S. Anand, Central Institute of Plastics Engineering and Technology, Guindy

Mr S. Anand did his Master in Computer Aided Design/Computer Aided Manufacturing at the Central Institute of plastics Engineering and Technology (CIPET), Chennai. He had worked as Junior Research Fellow in Combat Vehicles Research and Development Establishment, Chennai. He specialises in computer aided engineering. His main research interests are analysis and optimisation of manufacturing process by finite element technique using virtual prototypes.

Finite Element Analysis and Experimental Study on the Effect of Extrusion Ratio during Hot Extrusion Process of Aluminium Matrix Composites

Abstract

Author Biographies

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