Thermal modeling and analysis of thin-walled structures in micro milling

2017 International Conference on Material Engineering and Manufacturing

Zhang, J.F.^1 ; Ma, Y.H.^1 ; Feng, C.^1 ; Tang, W.^1 ; Wang, S.^1

College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao

266590, China^1

关键词: Critical factors;    Friction power;    Micro milling;    Micro-cutting;    Minimum chip thickness;    Numerical-analytical model;    Thermal model;    Thermal softening;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/265/1/012017/pdf
DOI  :  10.1088/1757-899X/265/1/012017

来源: IOP

【 摘 要 】

The numerical analytical model has been developed to predict the thermal effect with respect to thin walled structures by micro-milling. In order to investigate the temperature distribution around micro-edge of cutter, it is necessary to considering the friction power, the shearing power, the shear area between the tool micro-edge and materials. Due to the micro-cutting area is more difficult to be measured accurately, the minimum chip thickness as one of critical factors is also introduced. Finite element-based simulation was employed by the Advantedge, which was determined from the machining of Ti-6Al-4V over a range of the uncut chip thicknesses. Results from the proposed model have been successfully accounted for the effects of thermal softening for material.