Research On The Technology Of Optimizing Groove For Milling Insert With 3-D Complex Groove

Considering the cutting performance of milling insert was relevant with the change rule of milling force and milling heat in milling course, with improving the cutting performance and the reliability of the milling insert with three-dimension complex groove, the mathematical model of milling force and milling heat,the density function of surface force and the surface heating of milling insert were founded based on the temperature of milling force and milling heating in this paper. Taking those above mentioned as the boundary condition to analyze the stress field and the temperature field, and the quantification mathematical model of the stress field and the temperature field were founded consequently. The impact disrepair and the adhering disrepair experiment had been done to compare and choose the best groove for milling inserts. The main content as follow.1. Researched and simplified the force density function of the milling insert which had been founded; The three-dimension solid models of the flat face milling insert and waved-edge milling insert were built by using of the three-dimensional software UG. And then transmit these models into ANSYS software to analyze the stress field of inserts used the force density function as the boundary condition. And compared the analysis results of ANSYS and chose the best groove between wave-edge insert and the flat insert.2. The photos of impact disrepair were obtained through research on the impact disrepair experiment of cutting the 45# steel with four kinds of hard alloy milling insert. According to the impact disrepair experiment data, the mathematical model of impact life of four kinds insert were founded by using the Super SMITH Weibull analysis software. The distribution probability of the impact disrepair life of four kinds of milling insert was accorded with the Weibull distribution could be proved by using theКОЛМОГОРОВstatistical method. The best milling insert groove were selected through contrasted and analyzed on the impact life of four kinds of milling insert3. Based On the milling temperature experiment and combined the experiment analysis result, the surface average temperature, the surface heating density function and theoretical temperature field mathematic model of milling insert were founded by using the dimensional analysis method. According to the experiment data, the experimental formula of milling temperature changes with time was obtained by using the MTLAB software. And the milling temperature of inserts under the same cutting parameters was also contrasted and analyzed. The three-dimension unsteady temperature field of inserts was analyzed by using the ANSYS software, and the distribution rule of milling insert's temperature at different time in the cutting periods was founded. Based on the finite element analysis of the temperature field, the fuzzy comprehensive evaluation for temperature field and thermal stress analysis was made, which used to choose the best groove for inserts.All these studies above based the foundation for building synthetic physics field quantification mathematical model and optimizing the groove CAD system of the three-dimensional groove insert. The research also provided theory foundation for designing and developing milling insert groove.