Affiliation:
1. Technical University of Braunschweig, Institut fu¨r Werkstoffe, Langer Kamp 8, D-38106 Braunschweig, Germany
Abstract
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.
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering
Cited by
34 articles.
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