Dynamics Modeling And Simulation Of Small Diameter Cutter High-speed Milling Of Hardened Steel

High-speed machining (HSM) technology, as one of the advancedmanufacturing technical methods, has become the main trend of the developmentof modern digital-controlled manufacturing technology. It has been appliedin the fields of aeronautic, automobile, die &mold, machining of hard-to-cutmaterial, and ultra-precision manufacturing. Due to the lacking of furtherstudies of high-speed machining mechanism and being not supported by itsrelated technical foundation, there are many problems in practice in highspeed milling. For example, in the machining of hardened steel mold with deepand narrow slots, cutting tools will bring the chatter vibration, so theproblem that how to control the vibration is urgent to be solved.Aim to make up Dynamic model of micro-end mill high speed milling hardenedsteel and forecast the vibration with the method of simulation accurately.The main research works include:1) According to the theory analysis, mainly considered that the inertialforce that the material of cutting lay slipped follow the plane of shearbecause of the high cutting speed will has more effect, the periodic changeof cutter for cutting-in and cutting-out, regeneration effect etc. Author madeup a dynamic model of high speed milling.2) Researched the experiment of micro-end mill high speed milling hardenedsteel. Experiment results indicate that in high speeds range, main cuttingforce (tangential force component) is steady, and increment of cutting depthand increment of feed per tooth cause increment of cutting forces linearly.3) The Dynamic model of micro-end mill high speed milling hardened steelwas made up though the experiment and finite element analysis.4) The MATLAB/Simulink simulation was made up though analysis the Dynamicmodel.