超声铣削TA15 钛合金工艺参数及疲劳寿命实验研究

针对航空钛合金零件机加工后疲劳强度大幅降低问题，提出基于旋转超声铣削的抗疲劳制造技术。基于变主轴转速和超声振幅的旋转超声铣削实验，探究了传统工艺参数及超声振动参数对钛合金残余应力和疲劳寿命的影响规律。并开展了变疲劳加载频率的有无超声对比实验，验证了超声振动对钛合金疲劳强化效应的普适性。实验结果表明，提高主轴转速和摄入超声能量，钛合金残余应力增加，疲劳强化效应显著。在不同加载频率条件下，相较传统铣削，超声铣削可提高钛合金疲劳寿命20.3%。

Aiming at the significant reduction in fatigue strength of aeronautical titanium alloy parts after machining, this study proposes a fatigue-resistant manufacturing technology based on rotary ultrasonic milling. Through rotary ultrasonic milling experiments with variable spindle speeds and ultrasonic amplitudes, the influence rules of traditional process parameters and ultrasonic vibration parameters on the residual stress and fatigue life of titanium alloys were explored. Additionally, comparative experiments with and without ultrasonic assistance were conducted under variable fatigue loading frequencies, verifying the universality of the fatigue strengthening effect of ultrasonic vibration on titanium alloys. Experimental results demonstrate that increasing spindle speed and ultrasonic energy input leads to elevated residual stress in titanium alloys, with a notable fatigue strengthening effect. Under different loading frequency conditions, compared with conventional milling, rotary ultrasonic milling can improve the fatigue life of titanium alloys by 20.3%.

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该数据集聚焦于超声铣削TA15钛合金的工艺参数与疲劳寿命实验研究，旨在解决航空钛合金机加工后疲劳强度降低的问题。通过对比传统铣削与旋转超声铣削，探究了主轴转速、超声振幅等参数对残余应力和疲劳寿命的影响，实验发现超声铣削可显著提高疲劳寿命达20.3%。数据来源于国家重点研发计划项目，包含实验数据和结果，适用于机械制造和材料加工领域的研究。