ADC12铝合金高速切削参数优化分析

The Cutting Parameters Optimization Analysis on the Process of Cutting Aluminium ADC12 with High Speed

针对某发电机的ADC12铝合金加工件在高速切削时存在的加工问题,采用有限元仿真技术,以优化切削加工参数为主线,把高速切削过程简化为二维正交切削模型,选用Johnson-Cook塑性材料本构模型,对二维有限元切削仿真分析过程中存在的若干个关键问题进行讨论。结合实际加工的经验数据,通过组合不同的切削深度、切削速度和进给量等切削参数进行仿真比较,得到仿真结果并通过实际加工验证,确定最佳切削加工工艺方案,为铝合金高速切削加工的稳定性预测和改进加工工艺提供了理论依据。

For processing problems in high speed cutting about aluminum ADC12 of parts in a generator, finite element simulation is used in order to optimize the cutting parameters. The high speed cutting technology is simplified as a two- dimensional orthogonal cutting model, Johnson-Cook plastic material constitutive model is selected, and several key problems of two-dimensional finite element simulation analysis on the cutting process are discussed. By combining practical experience, the combination of different cutting parameters such as cutting depth, cutting speed and feed rate are used for simulation and comparison. Finally, the simulation results are obtained, the optimal machining process plan is determined through the actual verification, and theoretical research is provided for predicting the stability of aluminum alloy in high speed cutting and improving the processing technology.