Paper Title:
Quantitative Study of Shear Localization in Chip Formation while Machining Ti-6Al-4V
  Abstract

The formation of shear localized chips in orthogonal machining of Ti-6Al-4V was investigated. The chips in different cutting velocities were collected and the structure of the adiabatic shear localization was examined by optical microscope and SEM after polishing and eroding. The serrated coefficient, serrated frequency and fibred coefficient were proposed in this paper to characterize the degree of serration and plastic shear flow of the chip quantitatively. Experimental results show that the width of the shear band decreased and the fibred coefficient of the shear band increased as cutting speed increased. The serrated and frequency, the serrated coefficient increased with the increase of cutting speed in the experimental range of cutting speeds.

  Info
Periodical
Key Engineering Materials (Volumes 407-408)
Edited by
Fan Rui, Qiao Lihong, Chen Huawei, Ochi Akio, Usuki Hiroshi and Sekiya Katsuhiko
Pages
412-415
DOI
10.4028/www.scientific.net/KEM.407-408.412
Citation
D. Liu, W. Y. Chen, H. H. Xu, X. K. Luo, H. Liang, "Quantitative Study of Shear Localization in Chip Formation while Machining Ti-6Al-4V", Key Engineering Materials, Vols. 407-408, pp. 412-415, 2009
Online since
February 2009
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$32.00
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