北京航空航天大学学报 ›› 2019, Vol. 45 ›› Issue (8): 1597-1605.doi: 10.13700/j.bh.1001-5965.2018.0709

• 超声加工技术 • 上一篇    下一篇

钛合金超声振动钻削工艺特性仿真及试验研究

赵甘霖1, 冯平法1,2, 张建富1   

  1. 1. 清华大学 机械工程系 精密超精密制造装备及控制北京市重点实验室, 北京 100084;
    2. 清华大学 深圳研究生院 先进制造学部, 深圳 518055
  • 收稿日期:2018-12-02 出版日期:2019-08-20 发布日期:2019-09-06
  • 通讯作者: 冯平法 E-mail:fengpf@tsinghua.edu.cn
  • 作者简介:赵甘霖 男,博士研究生。主要研究方向:钛合金超声辅助加工;冯平法 男,博士,教授,博士生导师。主要研究方向:高效精密制造工艺与装备;张建富 男,博士,副教授,博士生导师。主要研究方向:精密与特种加工技术。
  • 基金资助:
    国家自然科学基金(51875311,51475260)

Simulation and experimental study on ultrasonic vibration drilling process characteristics of titanium alloy

ZHAO Ganlin1, FENG Pingfa1,2, ZHANG Jianfu1   

  1. 1. Beijing Key Lab of Precision/Ultra-precision Manufacturing Equipments and Control, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
    2. Division of Advanced Manufacturing, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
  • Received:2018-12-02 Online:2019-08-20 Published:2019-09-06
  • Supported by:
    National Natural Science Foundation of China (51875311,51475260)

摘要: 针对钛合金传统钻削中存在的切削力大、切削温度高和加工质量差等问题,研究了钛合金超声振动钻削工艺特性。首先,通过超声振动钻削的运动方程,分析了其断续切削和高速切削的特性;然后,利用Deform-3D对钛合金超声振动力钻削的轴向力、扭矩和切削温度进行了仿真,并通过超声振动钻削试验研究了轴向力、扭矩和出口毛刺相对传统钻削的变化。结果表明:钛合金超声振动钻削可以降低平均轴向力约20%,降低平均扭矩约40%,降低平均切削温度50%以上,钛合金超声加工孔的加工质量明显优于传统加工。钛合金超声纵扭复合振动钻削相比超声一维纵振钻削可以进一步降低钻削轴向力、扭矩和切削温度,体现出更好的钻削工艺特性。

关键词: 钛合金, 超声振动钻削, 纵扭复合振动, 切削力, 扭矩, 切削温度

Abstract: Issues of high cutting force, high cutting temperature and bad machining quality in the case of conventional titanium alloy drilling are widespread. Thus a study of ultrasonic vibration drilling process characteristics of titanium alloy was carried out. Firstly, the characteristics of both interrupted cutting and high-speed cutting were analyzed using the equation of motion of ultrasonic vibration drilling. Secondly, Deform-3D was then employed to simulate the axial force, torque and cutting temperature of titanium alloy ultrasonic vibration drilling. In the final step, ultrasonic vibration drilling of titanium alloy was conducted. This aided the investigation of relative change in cutting forces, torque as well as exit burrs of ultrasonic vibration drilling in comparison to conventional drilling. The results show that ultrasonic vibration drilling of titanium alloy can reduce the axial force by about 20%, the torque by about 40% and the average cutting temperature by about 50%. And the processing quality by ultrasonic vibration drilling of titanium alloy is superior when compared to conventional drilling. The longitudinal-torsional composite ultrasonic vibration drilling of titanium alloy is more effective than one-dimensional longitudinal ultrasonic vibration drilling as it has much greater influence in the reduction of axial force, torque and cutting temperature, which shows superior drilling processing characteristics.

Key words: titanium alloy, ultrasonic vibration drilling, longitudinal-torsional composite vibration, cutting force, torque, cutting temperature

中图分类号: 


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