Title: FEM-based vibration control in end milling using fixture layout

Authors: M. Sabareeswaran; K.P. Padmanaban; K.A. Sundararaman

Addresses: Department of Mechanical Engineering, SBM College of Engineering and Technology, SBM Nagar, Thamaraipadi Post, Trichy Road, Dindigul - 624005, Tamil Nadu, India ' Department of Mechanical Engineering, SBM College of Engineering and Technology, SBM Nagar, Thamaraipadi Post, Trichy Road, Dindigul - 624005, Tamil Nadu, India ' Department of Mechanical Engineering, SSM Institute of Engineering and Technology, Kuttathupatti Village, Sindalagundu Post, Dindigul - 624 002, Tamil Nadu, India

Abstract: Fixtures are used to locate and constrain the workpiece during machining. They are used to accomplish the machining accuracy and high productivity in the manufacturing process. Fixture, workpiece and cutting tool form a structural system and the behaviour of the system is dynamic. During machining, engagement of cutter with workpiece causes vibration leads to distortion of workpiece, which in turn affects machining accuracy. The fixture-cutting tool-workpiece system needs to be analysed in terms of its dynamic response and is critical to minimise the vibration. In this research paper, finite element method is applied to model and simulate the machining operation and harmonic analysis is employed to determine the amplitude of vibration. Then, genetic algorithm is proposed to minimise the amplitude vibration by optimising the machining fixture layout.

Keywords: fixture layout; dynamic behaviour; FEM; finite element method; GAs; vibration control; end milling; modelling; simulation; genetic algorithms.

DOI: 10.1504/IJMMM.2014.060550

International Journal of Machining and Machinability of Materials, 2014 Vol.15 No.3/4, pp.201 - 211

Available online: 19 Apr 2014 *

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