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Curvic Coupling Tooth 가공의 연삭 조건 선정 및 가공면 평가에 관한 연구
허두권(Du-Kwon Hur),김명현(Myung-Hyun Kim),김찬규(Chan Kyu Kim),정영철(Young Cheol Jeong),정윤교(Yoon Gyo Jung),조영태(Young Tae Cho) 한국기계가공학회 2018 한국기계가공학회지 Vol.17 No.3
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.