变参数振动钻削过程中 ,由于轴向力、扭矩等的动态变化及不同区段加工质量特征参数的不同 ,导致不同的最优振动参数和最优切削参数 .文中通过多元正交多项式回归参数优化设计 ,运用概率论和数理统计原理进行振动钻削过程的参数优化 ,并通过对比试验验证了变参数振动钻削的优良效果 . Variable parameters In the process of vibration drilling, different optimum vibration parameters and optimal cutting parameters result from the dynamic changes of axial force and torque, as well as the characteristic parameters of machining quality in different sections.In this paper, by using multivariate orthogonal polynomial regression parameters Optimize the design, optimize the parameters of the vibration drilling process by using the theory of probability and mathematical statistics, and verify the excellent effect of the variable parameter vibration drilling by comparative experiments.