Study on the Forging of Splines with Hollow and Solid Billets

중공 및 중실소재를 이용한 스플라인 단조에 관한 연구

  • 조해용 (충북대학교 정밀기계공학과) ;
  • 최종웅 (부산대학교 대학원 기계설계공학과) ;
  • 민규식 (마산전문대학 자동차과)
  • Published : 1996.01.01

Abstract

Forging of trapezoidal spline, serration and square spline with solid cylindrical billets and hollow one has been investigated by means of upper bound method. Kinematically admissible velocity fields for forging of splines have been proposed in this study. The half pitch of spline has been divided into several deformation regions. The neutral surface is introduced into forging of splines with flat punch and, for each step, it is assumed as a circle with its radius $r_n$. Upper bound solutions obtained by proposed kinematically admissible velocity fields are useful to predict the loads for forging of splines.

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