石蜡辅助加固钛合金薄壁件铣削稳定性研究

Study on milling stability of thin-walled titanium alloy components with paraffin reinforcement

针对钛合金薄壁件刚度低、加工过程容易产生让刀、振动等问题,采用石蜡辅助加固的工艺措施,通过采用石蜡加固提高工件刚度的方法来实现钛合金薄壁件的加工稳定性。设计石蜡填充钛合金框类薄壁件铣削实验,对实验过程中的振动加速度信号和已加工表面质量进行分析对比,并研究石蜡辅助加固对钛合金薄壁件加工性能改善的作用机理。结果表明采用石蜡辅助加固能够有效提高钛合金薄壁件加工过程中的稳定性。

Aiming at the technical problems such as low stiffness,vibration and dimension error in milling thin-walled titanium alloy components,milling experiments with and without paraffin reinforcement were conducted.The acceleration signals in the milling process and the surface roughness of the finished part were measured and analyzed.It was shown that paraffin reinforcement can significantly improve machining stability and surface finish.The paraffin reinforcement mechanism in milling thin-walled titanium alloy component was also studied.