Dynamics Analysis and Tooth Profile Optimization of Finger-shaped Milling Cutter for Screw Rotors

10.6567/IFToMM.14TH.WC.PS4.004

Qian Tang；Zong-Min Liu；Yuan-Xun Zhang；Zhen-Wei Jiang

Screw Rotor ； Finger-shaped Milling Cutter ； Milling Force ； Numerical Simulation ； Optimization

Proceedings of the 14th IFToMM World Congress

14th-5（2015 / 11 / 06）

184 - 189

英文

This paper is aimed to bring down the high difficulty of machining screw rotors and the high dependence on special equipment. This paper presents a model for calculating the milling force of the finger-shaped milling cutter, based on the cutter's dynamic behaviors during the machining process. According to, the discrete differential element calculation method and mathematical software, the cutting force and deformation of the whole finger-shaped milling cutter for the machining process can be obtained, and the cutter tooth profile modification can be achieved based on actual machining process. A series of machining simulation have been completed, and the results show that the machining precision of screw rotor is improved after the modification of the tooth profile, the dependence of special processing equipment for the screw tooth surface machining is reduced. At the same time, the results have practical value to reduce the cost of screw type mechanical products.