The mechanism behind chip segmentation of titanium alloys is still unclear. Experimentally, different kinds of deformation patterns are observed. In this paper we perform a finite element analysis where chip segmentation is done by introducing cracks from the chip surface into the material. A fine mesh is used within the segments, allowing a high resolution of the occurring strain gradients. Because of stress concentration at the crack tip, adiabatic shear bands can form and lead to a strongly segmented chip with pronounced deformation in the crack region. Depending on the cracking parameters, different deformation patterns at the crack flanks are observed.
Finite Element Simulation of Segmented Chip Formation of Ti6Al4V
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received August 2001. Associate Editor: M. Elbestawi.
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Ba¨ker, M., Ro¨sler, J., and Siemers, C. (April 29, 2002). "Finite Element Simulation of Segmented Chip Formation of Ti6Al4V ." ASME. J. Manuf. Sci. Eng. May 2002; 124(2): 485–488. https://doi.org/10.1115/1.1459469
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