Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
권호 표지

Upper Bound Analysis for Forging of Spur Gears

스퍼어기어의 단조에 관한 상계해석

  • 조해용 (충북대학교 정밀기계공학과 ,정밀정형 및 금형가공연구센타) ;
  • 최재찬 (부산대학교 기계설계공학과, 정밀정형 및 금형가공연구센터) ;
  • 최종웅 (부산대학교 대학원 기계설계공학과)
  • Published : 1995.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Forging of spur gears has been investigated by means of upper-bound method. The term forging means forging of spur gears with solid cylindrical billets, hollow billets with flat punch. Kinematically admissbile velocity field for forging of spur gears has been proposed in this study. The 1/2 pitch of spur gear has been divided into seven dieformation regions, wherein, an involute curve has been introduced to represent the shape of die profile. Especially neutral surface has been introduced intor forging of hollow gears from hollow billets. By using the kinematically admissible velocity field, the powder requirements and suitable conditions for forging fo spur gears were successfully calculated with numerical method. According to the analysis , the acceptable number of teeth for forging of spur gears is from 15 to 20.

Keywords