Experimental Study And Cutting Parameter Optimization Of Micro-End Mill High Speed Milling 316L Stainless Steel

316L stainless steel is the major material in producing sea water desalting equipment.It is a kind of difficult-to process material which has strong adhesiveness and melting, but the high speed processing has the reduced cutting force, increasing the feed, Escape of chips effect good and so on merits.which is one of the influential trends in numerical control machining.Micro-end mill is one of the absolutely necessary tools for high-speed precise stainless steel workpiece. Uses the minor diameter milling cutter to carry on the high speed milling, the cutting tool unusual breakage question especially is serious.Therefore eliminates the cutting tool the unusual breakage, reduces the cutting tool cost in the production is the pending issue.The researches both at home and abroad touch little upon minor diameter milling cutter high speed cutting 316L stainless steel project. Therefore, optimizing the technological parameter of minor-diameter milling cutter high speed milling stainless steel is important to increasing processing efficiency and and reducing processing cost.The thesis intends to investigate the influence of various processing parameters on cutting force and vibration by experimentiong on contour and slot of micro-end milling cutter high speed milling 316L stainless steel and to employ Taguchi Method and PCA to do optimization analysis on cutting parameters, providing theoretical reference for production practice. The main research contents are as follows:(1) Carring out separate single factor experiments on contour and slot of minor-diameter milling cutter high-speed milling 316L stainless steel, studying the influence of different milling parameters on resultant tool force and vibration, and getting the leVel Value of orthogonal experiment.(2) Carrying out a factor interaction experiment on contour and slot of minor-diameter milling cutter high-speed milling 316 stainless steel separately, researching the bilateral interaction effects between elements and finding out the combination with a strong interaction.(3) According to the results of single-factor experiment and interaction experiment, the four-factor and three-level orthogonal experiment of contour milling and three-factor and three-level orthogonal experiment are designed and various milling parameters on cutting force are investigated. In addition, the minimum optimal parameter combination is got by analysis of variance.(4) Establishing regression analysis model of contour and slot milling joint forces of minor-parameter high-speed milling 3161 stainless steel based on orthogonal experiment and passing the signiFicance testing.(5) To combine taguchi method and PCA, optimize cutting force and viration as one comprehensive goal as well as verify the optimization results.Under the condition of this experiment, the optimal cutting parameter combination for contour process is:cutting speed 120m/min, cutting depth 0.06mm, feed rate 0.01mm, cutting width 0.08mm. The optimal cutting parameter combination for slots processing is:cutting speed 120m/min, cutting depth 0.06mm, feed rate per tooth 0.01mm/z.