Spoke flanging die of steel wheel

The invention discloses a spoke flanging die for a steel wheel, which relates to the field of manufacturing of automobile wheels and comprises a male die and a female die. The male die is annular, the outermost side edge of the male die is a first straight edge, and the first straight edge is a vertical edge. The female die and the male die are correspondingly arranged, the female die is also annular, a second straight edge is arranged in the female die, the second straight edge is outwards inclined relative to the first straight edge, the inclination angle of the second straight edge relative to the first straight edge is alpha, and the value range of alpha is 0.5-1 degree. By adopting the structural design, the straight end of the spoke is perfectly matched with the groove bottom of the rim, so that the radial fatigue life of the formed wheel is prolonged by about more than three times. 本发明公开了一种钢车轮的轮辐翻边模具，涉及对汽车车轮的制造领域，包括凸模和凹模；所述凸模呈环状且所述凸模的最外侧边为第一直边，所述第一直边为竖直边；所述凹模与所述凸模对应设置，所述凹模同样呈环状，所述凹模中具有第二直边，所述第二直边相对于所述第