【摘要】 为研究钛合金超声振动钻削的特性,分析工艺参数对切削力的影响,指导工艺参数的选择,进行了钛合金超声振动钻削的正交对比试验。试验表明:超声振动钻削的切削力随振幅增大而减小,随切削速度、钻头顶角和进给速度变化的规律与普通钻削相似,但是相应的变化幅度更大,而且切削力波动更大;一定切削速度范围内,采用较大振幅、较小钻头顶角及较大进给速度,能保证钻削钛合金的加工质量和钻头使用寿命,并提高加工效率,降低加工成本。更多还原

【Abstract】 For studying properties of ultrasonic vibration drilling of titanium alloy, process parameters’ influence on cutting force is analyzed to guide its selection of process parameters, ultrasonic vibration drilling of titanium alloy orthogonal test is designed. The test results show ultrasonic vibration cutting force decreases with the drill end amplitude’s increasing, and the change laws on cutting speed, feed rate and drill angle are similar to ordinary drilling, but the rate greater; adopting small corner bit, large bit amplitude and feed rate properly, within a certain cutting speed, can ensure the quality of drilling and tool wear, improve processing efficiency and reduce production costs.更多还原