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CFRP/钛合金叠层构件陀螺铣孔方法

高延峰 方向恩 熊俊 肖建华

高延峰, 方向恩, 熊俊, 等 . CFRP/钛合金叠层构件陀螺铣孔方法[J]. 北京航空航天大学学报, 2020, 46(5): 851-861. doi: 10.13700/j.bh.1001-5965.2019.0330
引用本文: 高延峰, 方向恩, 熊俊, 等 . CFRP/钛合金叠层构件陀螺铣孔方法[J]. 北京航空航天大学学报, 2020, 46(5): 851-861. doi: 10.13700/j.bh.1001-5965.2019.0330
GAO Yanfeng, FANG Xiang'en, XIONG Jun, et al. Tilted orbital milling method for hole-making of CFRP/titanium alloy laminated structures[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(5): 851-861. doi: 10.13700/j.bh.1001-5965.2019.0330(in Chinese)
Citation: GAO Yanfeng, FANG Xiang'en, XIONG Jun, et al. Tilted orbital milling method for hole-making of CFRP/titanium alloy laminated structures[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(5): 851-861. doi: 10.13700/j.bh.1001-5965.2019.0330(in Chinese)

CFRP/钛合金叠层构件陀螺铣孔方法

doi: 10.13700/j.bh.1001-5965.2019.0330
基金项目: 

航空科学基金 2018ZE56013

江西省自然科学基金 20171BAB206033

江西省重点研发计划 20171BBE50011

详细信息
    作者简介:

    高延峰  男, 博士, 教授, 硕士生导师。主要研究方向:特种加工技术

    通讯作者:

    高延峰, E-mail: gyf_2672@163.com

  • 中图分类号: TH162

Tilted orbital milling method for hole-making of CFRP/titanium alloy laminated structures

Funds: 

Aeronautical Science Foundation of China 2018ZE56013

Natural Science Foundation of Jiangxi Province of China 20171BAB206033

Key R & D Program of Jiangxi Province of China 20171BBE50011

More Information
  • 摘要:

    陀螺铣孔方法在普通螺旋铣孔的基础上,通过将铣刀倾斜一定的角度,使其在自转的同时围绕孔中心轴线做圆锥摆动式公转,以减少轴向力、提高制孔质量。利用陀螺铣孔方法对碳纤维增强复合材料(CFRP)/钛合金叠层构件进行制孔,分析了陀螺铣孔方法下制孔入口和出口阶段的材料去除速率、刀具侧刃和底刃的切削比例、底刃速度零点等。与普通螺旋铣孔相比,陀螺铣孔方法不会引起制孔入口和出口阶段材料去除速率的突变、其侧刃和底刃切削比例变大、底刃速度零点不进行切削。通过试验研究了制孔轴向力、切削温度的变化情况,发现陀螺铣孔方法可显著减小轴向力和切削温度。利用扫描电镜(SEM)对孔壁的表面质量进行了观测,发现陀螺铣孔方法可以消除CFRP孔入口部位的分层现象,且CFRP和钛合金材料的过渡部位也未产生明显的损伤。研究结果表明,陀螺铣孔方法有助于提高CFRP/钛合金叠层构件的制孔质量,具有潜在的工业应用价值。

     

  • 图 1  陀螺铣削制孔

    Figure 1.  Hole-making by tilted orbital milling

    图 2  偏心距对陀螺铣孔的影响

    Figure 2.  Effect of eccentric distance on tilted orbital milling

    图 3  陀螺铣孔过程

    Figure 3.  Process of tilted orbital milling

    图 4  孔入口与出口处的材料去除速率

    Figure 4.  Material removal rate at entrance and exit of hole

    图 5  侧刃与底刃铣削示意图

    Figure 5.  Schematic diagram of side-edge and bottom-edge milling

    图 6  铣刀和被加工孔沿孔轴线方向的投影

    Figure 6.  Projection of milling cutter and hole along hole axis

    图 7  在任意圆柱面上的刀具轨迹展开图

    Figure 7.  Expanded view of tool path on an arbitrary cylindrical surface

    图 8  刀具底刃上任意一点的速度分析

    Figure 8.  Speed analysis of an arbitrary point on tool bottom edge

    图 9  刀具底刃速度零点的位置

    Figure 9.  Position of zero velocity of tool bottom edge

    图 10  陀螺铣孔试验系统

    Figure 10.  Tilted orbital milling test system

    图 11  陀螺铣孔示意图

    Figure 11.  Schematic diagram of tilted orbital milling

    图 12  CFRP和钛合金叠层构件

    Figure 12.  CFRP and titanium alloy laminates

    图 13  制孔过程中轴向力的变化

    Figure 13.  Change of thrust force in hole-making process

    图 14  自转速度与轴向进给速度对轴向力的影响

    Figure 14.  Effect of spindle rotation speed and axial feed speed on thrust force

    图 15  切削温度的测量

    Figure 15.  Measurement of cutting temperature

    图 16  制孔过程中温度的变化

    Figure 16.  Temperature change in hole-making process

    图 17  CFRP层孔壁表面形貌SEM照片

    Figure 17.  SEM photographs of hole wall surface morphology in CFRP layer

    图 18  不同部位的孔壁粗糙度形貌测量结果

    Figure 18.  Measurement results of hole wall roughness morphology at different locations

    图 19  孔入口部位(CFRP层)形貌

    Figure 19.  Morphology of hole entrance (CFRP layer)

    图 20  孔出口部位(Ti6Al4V层)形貌

    Figure 20.  Morphology of hole outlet (Ti6Al4V layer)

    图 21  入口部位孔壁SEM照片

    Figure 21.  SEM photographs of hole wall at entrance

    图 22  CFRP层孔底SEM照片

    Figure 22.  SEM photographs of hole bottom of CFRP layer

    图 23  CFRP材料层孔底侧壁部位SEM照片

    Figure 23.  SEM photographs of side wall of hole bottom of CFRP material layer

    图 24  CFRP层和Ti6Al4V层间孔壁SEM照片

    Figure 24.  SEM photographs of interlayer hole wall of CFRP and Ti6Al4V

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出版历程
  • 收稿日期:  2019-06-25
  • 录用日期:  2019-09-22
  • 刊出日期:  2020-05-20

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