Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Study on the Selection of Grinding Conditions and Evaluation for Curvic Coupling Tooth Machining

Curvic Coupling Tooth 가공의 연삭 조건 선정 및 가공면 평가에 관한 연구

  • Hur, Du-Kwon (Department of Mechanical Engineering, Changwon national univ.) ;
  • Kim, Myung-Hyun (Department of Mechanical Engineering, Changwon national univ.) ;
  • Kim, Chan Kyu (Department of Mechanical Engineering, Changwon national univ.) ;
  • Jeong, Young Cheol (Department of Mechanical Engineering, Changwon national univ.) ;
  • Jung, Yoon Gyo (Department of Mechanical Engineering, Changwon national univ.) ;
  • Cho, Young Tae (Department of Mechanical Engineering, Changwon national univ.)
  • Received : 2018.02.06
  • Accepted : 2018.05.10
  • Published : 2018.06.30
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Abstract

As gas turbines for power generation become increasingly more important for high capacity and high efficiency, the technological development and investment of companies are increasing globally. Gas turbine manufacturing technology is only owned by a few companies such as GE, Siemens, and MHI, and our country currently depends on imports of processing technology and component parts. The core part of the gas turbine is curvic coupling tooth processing technology that improves turbine efficiency by smoothly transmitting power to the turbine rotor. Curvic coupling tooth machining and evaluation research is restricted overseas, and it is not underway in Korea. Therefore, in this study, roughing and finishing process technology for curvic coupling tooth machining is developed and a quantitative evaluation method is proposed. For the development of machining technology, the analysis of critical parameters was performed through C & E analysis. In the roughing process, the conditions considering the minimum machining time and tool load ratio were determined. Finishing process conditions were determined based on the contact ratio between the tooth surfaces. The image-processing method is presented for evaluation of the contact ratio and a verification test was performed.

Keywords

References

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