Three-dimensional finite element analysis for the stamping of a motorcycle oil tank

摘要

The three-dimensional finite element analysis was performed to determine an optimum die design and the corresponding sheet-blank shape for stamping a part of motorcycle oil tank. To save the computation time, an equivalent drawbead model wasadopted to replace the actual drawbead shape in the finite element simulations. The forming limit diagram constructed from stretching tests wasalso used in conjunction with the finite element results to predict the occurrence of fracture. The optimum die design and the corresponding sheet-blank shape obtained from the finite element analysis was validated by the achievement of defect freeproduction panels. The advantage of usingthe finite element analysis for the stamping die design was thereby confirmed.