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Volume 28 Issue 3
Mar.  2002
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Journal of Beijing University of Aeronautics and Astronautics  > 2002  >  28(3): 319-322.
PEI Xu-ming, CHEN Wu-yi, REN Bing-yi, et al. Effect of Drilling Processes on Surface Integrity of 7075Aluminum Alloy Holes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(3): 319-322. (in Chinese)
Citation: PEI Xu-ming, CHEN Wu-yi, REN Bing-yi, et al. Effect of Drilling Processes on Surface Integrity of 7075Aluminum Alloy Holes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(3): 319-322. (in Chinese)
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Effect of Drilling Processes on Surface Integrity of 7075Aluminum Alloy Holes

  • 1.

    Beijing University of Aeronautics and Astronautics, School of Mechanical Engineering and Automation

  • 2. Chengdu Aircraft Design & Research Institute

  • 3. Chengdu Aircraft Industry Co.

  • Received Date: 29 Sep 2000
  • Publish Date: 31 Mar 2002
    Abstract
  • Effect of the five drilling processes on the surface quality of fastening holes of 7075-aluminum alloy plate used in aircraft structures was investigated with the respect of surface integrity. By measuring and comparing of surface roughness, residual stress and micro hardness, it was found that the surface integrity of holes obtained by multiple-step machining with slow feed and byone-step compound machining were superior to that obtained by the other three drilling processes. In addition, factors influencing surface conditions were analyzed, and it was proved that one-step compound machining was an advanced and fast drilling method with high quality.

     

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  • [1]王尚志.航空零件加工的表面完整性[J].航空工艺技术,1988,(2):31~33. [2]王祝堂.铝合金及其加工手册[M].长沙:中南工业大学出版社,1989.930~937. [3]周泽华.金属切削理论[M]北京:机械工业出版社,1987.164~190. [4]周家宝.金属切削加工残余应力的研究[J].上海工业大学学报,1998,(4):322~327. [5]Neailey K. The surface integrity of machined components residual stress and fatigue[J]． Metals and Materials, 1988,(6):141~144.
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