Study Effects of Stamping Parameters on the Formation of a Car Hood Inner Panel

EasyChair Preprint no. 6163

Abstract

In this study, the authors study on structural optimization of a car hood inner panel and the stamping process quality in order to obtain a proper design of the hood inner panel for manufacturing. In this paper, the authors present an optimization study of process parameters of stamping process of the hood inner panel. The effects of two process parameters such as blank holding force (BHF) and the stamping speed on the formation of the hood inner panel were investigated by using computer aided engineering (CAE) simulation inside ETA/Dynaform software. The results show that with small BHF value, the deformation of the hood inner panel is insufficient and the wrinkle occurs in some areas on the part. On the other hand, when the BHF is high, the deformation is too large which results in wrinkle and crack. Similarly, when stamping at slow speed, the plastic deformation of the hood inner panel is insufficient and cause wrinkle on the part. By increasing stamping speed, the forming quality of the part is improved and become stable. It is found that when stamping with BHF of 500 Ton and stamping speed of 30 mm/s, good quality of the hood inner panel is achieved in this study.

Keyphrases: CAE simulation, Hood inner panel, plastic deformation, process optimization

@Booklet{EasyChair:6163,
  author = {Truong Duc Phuc},
  title = {Study Effects of Stamping Parameters on the Formation of a Car Hood Inner Panel},
  howpublished = {EasyChair Preprint no. 6163},

  year = {EasyChair, 2021}}