Int J Adv Manuf Technol (2014) 71:1901–1908
DOI 10.1007/s00170-014-5633-x
Analytical modeling of adiabatic shear band spacing for serrated chip in high-speed machining
Qibiao Yang & Zhanqiang Liu & Zhenyu Shi & Bing Wang
[Abstract]
Theoretical prediction ofadiabatic shear band spacing is beneficial to understand the mechanism of theserrated chip formation. The momentum equation, energy equation andcompatibility equation in orthogonal cutting are established in this paper.Using perturbation analysis by regarding cutting speed and uncut chip thicknessas basic disturbance, an analytical solution of adiabatic shear band spacing isdeveloped. Adiabatic shear band spacing of serrated chip is related to the wavenumber of the perturbation when the growth rate reaches to maximum. It is foundthat adiabatic shear band spacing decreases with the increase of cutting speedbut increases with uncut chip thickness. The experiment of orthogonal cuttingTi6Al4V under different cutting speeds (50 m/min-1800 m/min) and uncut chip thicknesses (0.02 mm-0.16 mm) verifies the validity of thetheoretical prediction.
Keywords Orthogonal cutting . Adiabatic shear band spacing . Serrated chip . Perturbation analysis
2014-Analytical modeling of adiabatic shear band spacing for serrated chip in hi.pdf
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