Optimal Design about Parameters of Cooling Pipes in Hot Stamping Die

The design reasonability of cooling pipe greatly affects the quenching performance of hot stamping die. In this paper, rectangular box is the carrier, the parameters of cooling pipe section, such as the diameter of cooling pipe, the distance between cooling pipes, the distance between cooling pipes and die surface, were studied by numerical simulation and orthogonal experiments. The quenching uniformity was taken as the evaluation criterion during research. Finally, the optimal parameters about cooling pipes distributed in hot stamping die were obtained and the quenching uniformity was improved.