Finite Element Analysis Of The High-speed Milling Milling Cutter

At present, high-speed processing has become an irresistibly developing trend. Machining and its high speed, deep cutting-in, and high feeding will be widely applied in the processing of the molds. However, during the process of high-speed milling molds with deep groove or narrow slit by small-diameter milling cutter, the problem of cutter's abnormal grinding is severe.it is urgent to solve this problem for the sake of the cost reduction.This essay sums up the relating researches both at home and abroad and the dummy of end mill is made on the basis of the research of high-speed milling of hardening steel by micro-end mill. It applies the finite element software "ANSYS" to simulate the real one and makes a research of the end mill's real stress, natural frequency, and mode of vibration in the condition of different high-speed processing (the helical depth of cutting,the feeding amount of each tooth,cutting speed,and the gripping length etc),in order to analyze and forecast the changing law and contrast with the existing experimental results. This research makes a reference to the choose of optimal technological parameter, the reduction of cutter's abrasion, modification of the articles' rough and the application of proper programming strategy etc. The main conclusions are as following:1 As the helical depth of cutting and the feeding amount of each tooth are growing, the maximum equivalent stress and the maximum deflection are growing rapidly, while the powerful stress are played averagely on the cantilever and the blade of the milling cutter .So during the high-speed processing of hardening steel by micro-end mill it should choose the helical depth of cutting and the feeding amount of each tooth as small as possible. Finally, the optimal rang of the helical depth of cutting:0.1-0.3mm and f the feeding amount of each tooth:0.01-0.03mm/z are obtained on the objection of the optimization of cutter's stress and deflection.In the given rang of cutting speed (Vc=60m/min-160m/min) the maximum equivalent stress and the maximum deflection are becoming...