Cross-scale identification for friction and wear boundaries of tooth flank of high-feed milling cutter

In the milling process, under high-efficiency and intermittent cutting loads, instantaneous posture of cutter cutter-workpiece engagement are in an unstable state. It is difficult to accurately identify friction wear boundary tooth flank. has become urgent problem be solved life evaluation cutters. The characteristics variation distribution thermal-stress mechanical coupling field flank vibration were studied. Using cross-scale load transfer method, relationship between macro micro loads on was realized. number broken valence bonds, sudden change potential energy attenuation elastic modulus super-cell mesoscopic scale identification method feature points proposed. cumulative obtained, verified by experiments.