Exploring the influence of constitutive models and associated parameters for the orthogonal machining of Ti6Al4V

International Conference on Recent Advances in Materials & Manufacturing Technologies

Pervaiz, S.^1 ; Anwar, S.^2 ; Kannan, S.^3 ; Almarfadi, A.^2

Department of Mechanical and Industrial Engineering, Rochester Institute of Technology - Dubai, P.O. Box 341055, Dubai, United Arab Emirates^1

Industrial Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh

11421, Saudi Arabia^2

Department of Mechanical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates^3

关键词: Difficult-to-cut materials;    Low thermal conductivity;    Machining performance;    Machining simulation;    Material constitutive models;    Mechanical behaviour;    Orthogonal machining;    Ti-6al-4v;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/346/1/012058/pdf
DOI  :  10.1088/1757-899X/346/1/012058

来源: IOP

【 摘 要 】

Ti6Al4V is known as difficult-to-cut material due to its inherent properties such as high hot hardness, low thermal conductivity and high chemical reactivity. Though, Ti6Al4V is utilized by industrial sectors such as aeronautics, energy generation, petrochemical and bio-medical etc. For the metal cutting community, competent and cost-effective machining of Ti6Al4V is a challenging task. To optimize cost and machining performance for the machining of Ti6Al4V, finite element based cutting simulation can be a very useful tool. The aim of this paper is to develop a finite element machining model for the simulation of Ti6Al4V machining process. The study incorporates material constitutive models namely Power Law (PL) and Johnson - Cook (JC) material models to mimic the mechanical behaviour of Ti6Al4V. The study investigates cutting temperatures, cutting forces, stresses, and plastic strains with respect to different PL and JC material models with associated parameters. In addition, the numerical study also integrates different cutting tool rake angles in the machining simulations. The simulated results will be beneficial to draw conclusions for improving the overall machining performance of Ti6Al4V.