FEA modeling and simulation of shear localized chip formation in metal cutting

The finite element analysis (FEA) has been applied to model and simulate the chip formation and the shear localization phenomena in the metal cutting process. The updated Lagrangian formulation of plane strain condition is used in this study. A strain-hardening thermal-softening material model is us...

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Bibliographic Details
Published in:International journal of machine tools & manufacture 1998-09, Vol.38 (9), p.1067-1087
Main Authors: Xie, J.Q., Bayoumi, A.E., Zbib, H.M.
Format: Article
Language:English
Subjects:
Applied sciences
Chip formation
Cutting
Cutting tool
Exact sciences and technology
Finite element analysis (FEA)
Machining. Machinability
Mechanical engineering. Machine design
Metal cutting
Metals. Metallurgy
Production techniques
Shear localization
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Summary:The finite element analysis (FEA) has been applied to model and simulate the chip formation and the shear localization phenomena in the metal cutting process. The updated Lagrangian formulation of plane strain condition is used in this study. A strain-hardening thermal-softening material model is used to simulate shear localized chip formation. Chip formation, shear banding, cutting forces, effects of tool rake angle on both shear angle and cutting forces, maximum shear stress and plastic strain fields, and distribution of effective stress on tool rake face are predicted by the finite element model. The initiation and extension of shear banding due to material's shear instability are also simulated. FEA was also used to predict and compare materials behaviors and chip formations of different workpiece materials in metal cutting. The predictions of the finite element analysis agreed well with the experimental measurements.
ISSN:0890-6955
1879-2170
DOI:10.1016/S0890-6955(97)00063-1