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TC4钛合金螺旋铣孔工艺孔壁表面完整性研究

江跃东 何改云 秦旭达 赵庆

江跃东, 何改云, 秦旭达, 赵庆. TC4钛合金螺旋铣孔工艺孔壁表面完整性研究[J]. 机械科学与技术, 2015, 34(10): 1521-1525. doi: 10.13433/j.cnki.1003-8728.2015.1009
引用本文: 江跃东, 何改云, 秦旭达, 赵庆. TC4钛合金螺旋铣孔工艺孔壁表面完整性研究[J]. 机械科学与技术, 2015, 34(10): 1521-1525. doi: 10.13433/j.cnki.1003-8728.2015.1009
Jiang Yuedong, He Gaiyun, Qin Xuda, Zhao Qing. Study on Surface Integrity of Hole in Helical Milling Process of TC4 Titanium Alloy[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(10): 1521-1525. doi: 10.13433/j.cnki.1003-8728.2015.1009
Citation: Jiang Yuedong, He Gaiyun, Qin Xuda, Zhao Qing. Study on Surface Integrity of Hole in Helical Milling Process of TC4 Titanium Alloy[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(10): 1521-1525. doi: 10.13433/j.cnki.1003-8728.2015.1009

TC4钛合金螺旋铣孔工艺孔壁表面完整性研究

doi: 10.13433/j.cnki.1003-8728.2015.1009
基金项目: 

国家高技术研究发展计划项目(863计划)、国家自然科学基金项目(51275354)及天津市应用基础及前沿技术研究计划重点项目(11JCZDJC22800)资助

详细信息
    作者简介:

    江跃东(1987-),硕士研究生,研究方向为航空难加工材料螺旋铣孔加工技术,hndxjyd0663@126.com

    通讯作者:

    秦旭达,副教授,硕士生导师,qxd@tju.edu.cn

Study on Surface Integrity of Hole in Helical Milling Process of TC4 Titanium Alloy

  • 摘要: 研究了螺旋铣孔工艺参数(主轴转速、每齿切向进给以及螺距)对TC4钛合金孔壁表面完整性的影响规律。通过开展TC4钛合金螺旋铣孔加工正交试验并利用粗糙度仪、显微硬度计、X射线应力仪、金相显微镜等测量分析了螺旋铣孔工艺对表面粗糙度、显微硬度分布、表面层残余应力分布以及显微组织变化的影响。结果表明:孔壁最大表面粗糙度Ra 0.431 μm,能很好满足航天工业对制孔粗糙度的要求;适当孔壁硬化(硬化程度为129%~141%)提高了耐磨性;表面层残余应力均为压应力,有利于提高孔的疲劳性能;由于散热良好和机械载荷小,孔壁表层并没有出现"白层"现象;因此,螺旋铣孔工艺能大大改善钛合金制孔表面完整性。
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出版历程
  • 收稿日期:  2013-12-17
  • 刊出日期:  2015-10-05

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