Finite Element Simulation of Extremely High Speed Machining of Ti6Al4V Alloy

Abstract:

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The finite element modeling and simulation of extremely high speed machining of Ti6Al4V alloy are presented in the paper. The Johnson-Cook’s constitutive model is used to describe the material behavior. The Johnson-Cook damage initiation criterion is used to predict the onset of damage due to void nucleation in ductile fracture. A damage evaluation law based on plastic strain energy and a fracture criterion combining the effect of different fracture mechanisms are proposed to model the progressive damage and fracture, respectively. Simulation results show that the predicted chip morphology agrees well with the experimental one. The distribution of temperature and specific cutting force are discussed later.

Info:

Periodical:

Edited by:

Hun Guo, Taiyong Wang, Zeyu Weng, Weidong Jin, Shaoze Yan, Xuda Qin, Guofeng Wang, Qingjian Liu and Zijing Wang

Pages:

293-297

DOI:

10.4028/www.scientific.net/AMM.141.293

Citation:

Y. Tan et al., "Finite Element Simulation of Extremely High Speed Machining of Ti6Al4V Alloy", Applied Mechanics and Materials, Vol. 141, pp. 293-297, 2012

Online since:

November 2011

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Price:

$35.00

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