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PANG Si-qin, YU Qi-xun, JI Guang-zhen. Research and Development of Cemented Carbide Multifacet Drill for Drilling High Strength Steel[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(1): 71-75.
Citation: PANG Si-qin, YU Qi-xun, JI Guang-zhen. Research and Development of Cemented Carbide Multifacet Drill for Drilling High Strength Steel[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(1): 71-75.
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Research and Development of Cemented Carbide Multifacet Drill for Drilling High Strength Steel

  • School of Mechanical Engineering and Automation, Beijing Institute of Technology, Beijing 100081

  • Received Date:1998-05-20
    Abstract
  • Aim To research on a solid cemented carbide multi facet drill for drilling high strength steel. Methods Assimilating some features of multi facet drill edge structures, through systematic drilling experiments, a new type of solid cemented carbide drill was developed and the drill geometry was optimized. Results With the new type drill,the drilling force decreases by 10%-20%, the drilling productivity (drilled holes per hour) increases by 2-3 times, and the drilling precision and surface finish increase by one level. Conclusion The new type drill possesses excellent drilling performance.
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