TiBw网状增强钛基复合材料旋转超声磨削的磨削力模型

To solve the problems of poor surface quality and unevenness during the processing of TiBw mesh reinforced titanium matrix composites, the normal grinding forces of rotary ultrasonic grinding were studied. The motion law of abrasive particles in rotary ultrasonic grinding was analyzed, the normal grinding force model of rotary ultrasonic grinding TiBw mesh reinforced titanium matrix composites was established, and the model was verified by single factor grinding experiment. The results show that under certain spindle speed, feed speed, grinding depth, fixed grinding width, ultrasonic amplitude and ultrasonic vibration frequency, the normal grinding forces decrease with the increase of spindle speeds and increase with the increase of feed speeds and grinding depths, and the absolute values of relative error between the grinding experimental values and the model calculated values are within 6%. The model well predicts the normal grinding force during grinding of TiBw mesh reinforced titanium matrix composites, which verifies the effectiveness of the prediction model.