摘要
借助有限元计算软件,建立了三维金属切削有限元模型,模拟了新型的Ti(C,N)基金属纳米陶瓷刀具金属切削过程,得到切削力、刀具磨损、切削温度的变化规律,计算出Ti(C,N)基金属纳米陶瓷刀具切削正火态45号钢时的合理前角。通过实验证明了模拟过程的正确性。相对于二维模拟,三维仿真更加真实地揭示了刀具和工件的切削状态。
Based on the finite element software, a 3-D finite element model （FEM） of metal cutting was built. The cutting process of new-style Ti （C, N ）-based nano-cermet cutter was simulated subsequently. Cutting force and toolwear were obtained as well as the distribution law of temperature. The optimum rake angle was calculated when cutting normalized 45# steel with Ti（C, N）-based nano- cermet cutter. The validity of the simulation results was demonstrated by a series of cutting tests. The simulation and experimental results show that 3 - D simulation can disclose the cutting status more objectively than 2 - D simulation, and it puts up a more effective method for research of metal cutting theory and development of new cutters.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2008年第1期151-155,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
安徽省自然科学基金资助项目(项目编号:01044107)
