The invention relates to a car body side wall stamping method using a drawing sill, a die and a car body side wall The method comprises the steps that a drawing die structure is designed, and a single drawing rib and the drawing sill are arranged on a male die blank holder, located on the ceiling side of a side wall outer plate, of the drawing die; the single drawing ribs and the drawing sills are arranged at intervals and extend along the product boundary of the side wall outer plate; and the side wall outer plate drawing procedure is conducted, specifically, the side wall outer plate blank is put into a drawing die, the drawing die punches the side wall outer plate blank, the blank flowing resistance is controlled through a single drawing rib and a drawing sill, and the side wall outer plate blank is subjected to one-time drawing to form a side wall outer plate drawing piece with a preset shape. According to the invention, a single draw bead and draw sill combined form is used, so that the expected quality requirement is met with lower cost. From the forming process, the whole process of the process method plays a role, and the process method has good effects on improving the material utilization rate of side wall products and ensuring the product quality.
本申请涉及一种使用拉延槛的车身侧围冲压方法、模具及车身侧围,所述方法包括:拉延模具结构设计,在拉延模具位于侧围外板顶棚侧的凸模压边圈上设置单拉延筋和拉延槛,单拉延筋和拉延槛相互间隔设置且沿侧围外板的产品边界顺延;侧围外板拉延工序,将侧围外板坯料放入拉延模具内,拉延模具冲压侧围外板坯料并通过单拉延筋和拉延槛控制胚料流动阻力,将侧围外板坯料一次性拉延成型具有预设形状的侧围外板拉延件。本申请使用单拉延筋+拉延槛组合形式以更低的成本达成预期的质量要求。从成形过程看,本工艺方法全过程都在起作用,对提高侧围产品的材料利用率以及保证产品质量有良好的效果。
Car body side body stamping method using drawing sill, die and car body side body
一种使用拉延槛的车身侧围冲压方法、模具及车身侧围
2023-10-31
Patent
Electronic Resource
Chinese