Research on Forming Optimization of Pneumatic Support Rod Fixing Plate of Car Tailgate Based on Orthogonal Test

Taking a new energy car tailgate pneumatic support rod fixing plate as the object, the simulation model is established by AutoForm finite element analysis software, and the stamping and forming numerical simulation is performed on it. On the basis of orthogonal experiment, the influence of drawbead width, convex and concave die gap, blank holder force, friction coefficient on the springback of the workpiece in the normal direction is studied by the range analysis method combined with the variance analysis method. Then the process parameter scheme with the best forming quality is obtained, which provides a theoretical basis for subsequent actual production.