Abstract
Milling is one of the commonly used processing methods. The spindle of milling cutter is likely to be inclined when assembly error exists or complex surface is machined with multi-axis machine tool, thus reducing the machining accuracy. In this work, a three-dimensional (3D) finite element model (FEM) of side milling is established by using finite element software ABAQUS. This work describes the plastic deformation of materials using the J-C constitutive model considering strain, strain rate and temperature. J-C damage model is then used as the failure criterion of materials. The constructed FEM is verified by comparing with those established in the existing literature. Then, based on the established 3D milling FEM, the influence of feed speed and spindle declination angle on the side milling process is studied. Finally, chip formation process is analyzed, and milling force, stress and temperature distribution are obtained. The results show that the radial milling force Fx is most affected by the declination angle of spindle, whose peak value will obviously increase as the declination angle of spindle increases in the milling process, accompanied by stronger curl in chip.
Graphical Abstract
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Acknowledgments
The research is financially supported by the National Natural Science Foundation of China (52104037), the China Postdoctoral Science Foundation (2020TQ0251 and 2020M683358), the Sichuan Province Science and Technology Support Program (2022NSFSC1985) and the Science and Technology Cooperation Project of the CNPC-SWPU Innovation Alliance (2020CX040301).
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Zhu, X., Shi, J. & Liu, Y. Effect of Declination Angle on the Side Milling Process of Ti6Al4V by a New Three-Dimensional Milling Finite Element Model. J. of Materi Eng and Perform 32, 10702–10711 (2023). https://doi.org/10.1007/s11665-023-07890-w
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DOI: https://doi.org/10.1007/s11665-023-07890-w