The objective of this study is to solve the problem that was occurred during the spline processing in A-IMS tubular shaft. The upper dies were modelled conventional case and modified case. The tubular shafts were modelled as standard case and error case. The error case assumed production error of raw material. The material of tubular shaft was set to SCM 420H as refer to the analysis library. The simulation results were analyzed and compared in terms of metal flow, effective stress, and effective strain characteristics. The crushed and buckling problems were observed at the upper side of tubular shaft body when conventional upper die was applied. However, the crushed and buckling problems were solved when modified upper die was applied.

• 김홍근(Graduate school of Mechanical Engineering, Kongju National University) | Hong Guen Kim
• 민 세훈(Graduate school of Venture, Hoseo University) | 민 세 훈
• 서현규(Division of Mechanical & Automotive Engineering, Kongju National University) | Hyun Kyu Suh Corresponding Author