The Application of Sector Tendon Structure to Design of Auto Cover Panel

Taking the wrinkle in the drawing process of rear wheel bundle as research object,a new sort of sector reinforce tendon structure has been proposed on the basis of the defects of forming process in the traditional rectangle reinforce structure.And the new structure has been simulated by using DYNAFORM software,of which the results display that the new structure can improve the flowing direction of material and control the wrinkle effectively.So the new structure has been proved to be reasonable and feasible. Furthermore,kinds of angles and heights of sector reinforce tendon structure have been studied for finding the rule of producing wrinkle in drawing process. The optimized height 5mm and 45 degrees of angle have been obtained,which makes the thickness rate rise from -19.70% to 15.8%. Finally,the qualified products have been produced successfully.