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CAO Bo, GAO Hang, BAO Yongjie, et al. Evaluation method of hole edge collapse defects in drilling particles reinforced aluminum matrix composites SiCp/Al[J]. Acta Materiae Compositae Sinica, 2014, 31(4): 949-954.
Citation: CAO Bo, GAO Hang, BAO Yongjie, et al. Evaluation method of hole edge collapse defects in drilling particles reinforced aluminum matrix composites SiCp/Al[J]. Acta Materiae Compositae Sinica, 2014, 31(4): 949-954.
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Evaluation method of hole edge collapse defects in drilling particles reinforced aluminum matrix composites SiCp/Al

  • 1.

    Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China;

  • 2.

    Beijing Aerospace Xinfeng Machinery Co., Ltd., Beijing 100045, China

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  • Received Date: July 04, 2013
    Abstract
  • The hole edge collapse defects in drilling medium and high volume ratio silicon carbide particle reinforced aluminum matrix composites (SiCp/Al) were observed by 3D test and statistically summarized, the defect mathematics model of edge collapse was established and a geometric method based on edge collapse volume has been presented to evaluate edge collapse level. The results show that the main defects in drilling SiCp/Al composites are edge collapse defects which are mainly produced at the exit of hole. The evaluation method is objective and real to evaluate the edge collapse defect level under different parameters in drilling SiCp/Al composites, and it has a certain guiding significance to process parameters optimization.
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