Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Study on Cold Forward Extrusion Formality Analysis along with Tool Entrance Angle of Helical Gear for Electronic Parking Brake Using Finite Element Analysis

유한요소해석을 이용한 전자식 주차브레이크용 헬리컬 기어의 금형 도입부 각도에 따른 냉간 전방압출 성형성 분석에 관한 연구

  • Kim, Byeong Kil (Department of Mechanical Engineering, The Graduate School of Kongju University) ;
  • Lee, Hyun Goo (Young Jin Precision Industrial Co., Ltd.) ;
  • Cho, Jae Ung (Department of Mechanical Engineering, Kongju University) ;
  • Jeong, Kwang Young (Department of Mechanical Engineering, Kongju University) ;
  • Cheon, Seong Sik (Department of Mechanical Engineering, Kongju University)
  • 김병길 (공주대학교 대학원 기계공학과) ;
  • 이현구 ((주)영진정공) ;
  • 조재웅 (공주대학교 기계자동차공학부) ;
  • 정광영 (공주대학교 기계자동차공학부) ;
  • 전성식 (공주대학교 기계자동차공학부)
  • Received : 2015.06.22
  • Accepted : 2015.08.22
  • Published : 2015.11.01
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Abstract

This study uses finite element analysis to evaluate the forming load of tool entrance angle of the cold forward extrusion molding process of helical gear; this can replace the spur gear applied to the Electronic Parking Brake (EPB) system. A cold forging process is often used in the automobile industry as well as in various industrial machines due to its high efficiency. Finite element analysis is frequently used when interpreting results of the forging process. Formality was evaluated by calculating tooth profile filling rate of helical gear. Change in required forming load was investigated when the entrance angle of forward extrusion tool die was changed from $30^{\circ}$ to $60^{\circ}$, also by finite element analysis. We suggest suitable tool entrance angles.

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References

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