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Abstract
A strong relationship exists between material deformation and cutting conditions in machining process. The continuous material deformation behaviors temporally varying in shear zone are required to be in-situ measured during machining. The spatio-temporal kinematics for material deformation with in-situ DIC measurement during orthogonal cutting Ti6Al4V is proposed. The image processing, digital image correlation and high-speed photography techniques are presented to analyze spatial–temporal kinematics of material plastic deformation during orthogonal cutting Ti6Al4V. The post-processing imaging technique is developed to process raw image sequences. The possessed image quality is characterized by four indicators. The evolution of material deformation along different strain paths is captured and analyzed in adiabatic shear bands. The spatio-temporal kinematic fields within the primary shear deformation zone under different cutting conditions are investigated by experiments. The research results can help to more precisely understand the dynamic mechanism of material plastic deformation during the manufacturing process.
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