한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제33권11호
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  • Pages.911-918
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  • 2016
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
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가변곡률을 가진 나선형 블레이드 제작을 위한 원추형 롤 성형 공정설계

Process Design of Conical Roll-Shaping for Fabrication of Variable Curvature Spiral Blade

  • 양성문 (부산대학교 기계공학부 대학원) ;
  • 심도식 (한국생산기술연구원 그린가공공정연구실용화그룹) ;
  • 지호성 (부산대학교 기계공학부 초소형기계부품혁신센터) ;
  • 백준호 (에스코알티에스 기술연구소 연구개발부) ;
  • 김봉식 (에스코알티에스 기술연구소 연구개발부) ;
  • 안석영 (부산대학교 기계공학부 정밀정형 및 금형가공연구소) ;
  • 박상후 (부산대학교 기계공학부 정밀정형 및 금형가공연구소)
  • Yang, Sungmoon (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Shim, Dosik (Green Manufacturing Process R&D Group, Korea Institute of Industrial Technology) ;
  • Ji, Hoseong (School of Mechanical Engineering, MEMS Technology Centre, Pusan National University) ;
  • Baek, Joonho (Department of Engineering Research, ESCO RTS Co., Ltd.) ;
  • Kim, Bongsik (Department of Engineering Research, ESCO RTS Co., Ltd.) ;
  • Ahn, Seokyoung (School of Mechanical Engineering, ERC/NSDM, Pusan National University) ;
  • Park, Sanghu (School of Mechanical Engineering, ERC/NSDM, Pusan National University)
  • 투고 : 2016.03.16
  • 심사 : 2016.09.19
  • 발행 : 2016.11.01
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초록

A conical roll-shaping process was proposed for fabrication of a metallic spiral blade applied to a small-scale wind turbine system. A spiral blade has continuously different curvatures, with a range of 100 to 350 mm radius. To fabricate this complex shape, we developed a conical roll-shaping process having two main conical rollers for feeding a blank sheet, and two cylindrical side rollers for control of local bending. For clear understanding of the process parameters, numerical analyses were conducted using a commercial code, Pam-Stamp. This study optimized the effects of process parameters, such as gap and angle between the main rollers and side rollers, and also the movement of side rollers. In order to increase the forming efficiency, a central rotation point was also calculated by the analytical approach. This developed rolling process can thus be utilized in a sheet metal forming process for obtaining spirally curved sheet metal shapes.

키워드

참고문헌

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피인용 문헌

  1. Conical roll-twist-bending process for fabrication of metallic Archimedes spiral blade used in small wind power generator vol.4, pp.4, 2017, https://doi.org/10.1007/s40684-017-0048-4