A simplified column model for the automatic design of the stamping die structure

An automatic design method of a stamping die structure was proposed in this paper. The design parameters of the stamping die structure were studied first via the Taguchi method. The effects of the parameters were analyzed in order to establish the design rules. A die structure analysis method using a simplified column model was proposed to design the optimum die topology automatically. The solid die block under the die surface was divided into small rectangular columns. The surface pressure of the part after drawing was converted into the boundary conditions of the die structure design. A pseudo density of the column model was defined as a function of pressure and die surface slope. The topology optimization of the die structure was obtained by using the required pseudo density and the constraint of the buckle condition. The design results were compared with the ANSYS topology optimization to verify the proposed model. The similar topology results demonstrated that the proposed method is feasible.