The shape of the hub hood fender automobile panel is arc,so it is easy to wrinkle,rupture and form inadequately during its forming because of the non-uniformity material flow. The drawing process was numerically simulated by Autoform software,and the best effect of the deformation was gained through the closed circuit drawbead by comparing three different drawbeads design,namely sections,open circuit and closed circuit. Therefore,the maximum thickening rate decreased from 3. 32% to 1. 18%,and the wrinkle di...