Paper Title:
Numerical Simulation of Adiabatic Shear Behavior in High-Speed Machining of Hardened Steel GCr15
  Abstract

In this paper, FEM is used to simulate the three stages of catastrophic shear occurrence, expansion and shear band formation when serrated chips are formed under adiabatic shear behavior in high-speed machining of hardened steel GCr15 with PCBN tool. By comparing data of simulation and experiment on chip morphology characters, it is indicated that they are in good accordance. Hereby, the author has analyzed strain and temperature distribution in adiabatic shear band, and dynamic characters of cutting force . The research results show that adiabatic shear band begins from tool tip and extends to workpiece free surface, and it is characterized by large strain and high temperature. In addition, it results from adiabatic shear behavior that cutting force waves regularly in a numerical range.

  Info
Periodical
Advanced Materials Research (Volumes 69-70)
Edited by
Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen
Pages
476-479
DOI
10.4028/www.scientific.net/AMR.69-70.476
Citation
T. Chen, X. L. Liu, G.T. Luo, F. G. Yan, D. K. Jia, "Numerical Simulation of Adiabatic Shear Behavior in High-Speed Machining of Hardened Steel GCr15", Advanced Materials Research, Vols. 69-70, pp. 476-479, 2009
Online since
May 2009
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