中国机械工程 ›› 2023, Vol. 34 ›› Issue (19): 2320-2326.DOI: 10.3969/j.issn.1004-132X.2023.19.006

• 机械基础工程 • 上一篇    下一篇

飞机钛合金蒙皮战伤便携气动铣切试验研究

高昆1,2;任延岫1;朱悦2;齐乐华3;罗俊3   

  1. 1.湖南省飞机维修工程技术研究中心飞机涂层与结构修复研究室,长沙,410124
    2.空军航空维修技术学院航空机电设备维修学院,长沙,410124
    3.西北工业大学机电学院,西安,710072
  • 出版日期:2023-10-10 发布日期:2023-11-02
  • 通讯作者: 罗俊(通信作者),男,1981年生,教授、博士研究生导师。研究方向为机械制造及其自动化、微滴喷射3D打印、石墨烯气凝胶打印。获省级自然科学一等奖1项。发表论文30余篇。E-mail:luojun@nwpu.edu.cn。
  • 作者简介:高昆,男,1969年生,副教授。研究方向为航空修理工程、飞机结构修理、机械制造及其自动化。发表论文10余篇。
  • 基金资助:
    湖南省教育厅科学研究项目(21B0928)

Experimental Study of Portable Pneumatic Milling for Battle Damages of Aircraft Titanium Alloy Skins

GAO Kun1,2;REN Yanxiu1;ZHU Yue2;QI Lehua3;LUO Jun3   

  1. 1.Aircraft Coating and Structural Repair Laboratory,Hunan Aircraft Maintenance Engineering 
    Technology Research Center,Changsha,410124
    2.Aviation Electromechanical Maintenance College,Air Force Aviation Maintenance Technology 
    College, Changsha,410124
    3.School of Mechanical Engineering,Northwestern Polytechnical University,Xi′an,710072
  • Online:2023-10-10 Published:2023-11-02

摘要: 针对战伤飞机钛合金蒙皮破孔损伤难以被高效切割的问题,提出了气动铣切结合复合油雾喷射(CMJ)润滑的原位切割修理新工艺,采用开发的飞机蒙皮便携气动切削试验平台开展了薄壁钛合金蒙皮气动铣切试验。试验结果表明,铣切厚度为1.5 mm的钛合金蒙皮时,采用逆铣方式、10 mm铣刀、铣削宽度ae为1~3 mm时,可使气动马达工作在最佳功率段内;采用CMJ润滑,每次切削后,保持原有铣削宽度再切削1~2次,可提高刀具寿命和切口形状精度。采用该便携气动铣切与润滑装置及优化工艺参数在某机体上成功实现了破孔损伤部位的修复用圆孔切割,为飞机钛合金损伤修理提供了简单、实用的技术方法。

关键词: 飞机战伤, 结构抢修, 气动铣切, 复合雾滴喷射, 钛合金TC4

Abstract: Aiming at the problems that war-damaged aircraft titanium alloy skin damages were difficult to be efficiently cut, a novel in-situ cutting and repair process of pneumatic milling combined with CMJ lubrication was proposed. Through the developed aircraft skin portable pneumatic cutting test platform, the thin-walled titanium alloy pneumatic milling tests were carried out. The test results show that when the titanium alloy skin with a thickness of 1.5 mm is milling, the pneumatic motor may work in the best power range by using the up milling method, the 10 mm diameter milling cutter, and the milling width ae of 13 mm. With CMJ lubrication, re-cutting 12 times after each cutting with the same milling width may improve the tool life and cutting-edge shape accuracy. A prefect hole in a damaged specific aircraft skin was successfully prepared by using the portable pneumatic milling and cutting device and processing parameters developed herein, which provides a practical novel technology for repairing titanium alloy damages in aircrafts. 

Key words: aircraft battle damage, structural repair, pneumatic milling, combined-mist-jet(CMJ), titanium alloy TC4

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