Finite element modeling of 3D turning of titanium |
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Authors: | Rui Li Albert J Shih |
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Affiliation: | (1) Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109-2125, USA |
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Abstract: | The finite element modeling and experimental validation of 3D turning of grade two commercially pure titanium are presented.
The Third Wave AdvantEdge machining simulation software is applied for the finite element modeling. Machining experiments
are conducted. The measured cutting forces and chip thickness are compared to finite element modeling results with good agreement.
The effects of cutting speed, a limiting factor for productivity in titanium machining, depth of cut, and tool cutting edge
radius on the peak tool temperature are investigated. This study explores the use of 3D finite element modeling to study the
chip curl. Reasonable agreement is observed under turning with small depth of cut. The chip segmentation with shear band formation
during the Ti machining process is investigated. The spacing between shear bands in the Ti chip is comparable with experimental
measurements. Results of this research help to guide the design of new cutting tool materials and coatings and the studies
of chip formation to further advance the productivity of titanium machining. |
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Keywords: | Chip morphology Machining process 3D finite element modeling Titanium machining |
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