汽车零件冷冲压成形质量的优化

针对汽车零件冷冲压成形过程存在的起皱、开裂等质量问题,以某品牌汽车的后地板横梁为例对其进行了板料形状和冲压工艺参数的优化.首先,根据拉延时板料的流动情况确定板料的形状和设计拉延筋的分布; 其次,通过正交实验确定最优冲压工艺参数组合,并对最优冲压工艺参数组合进行仿真分析和拉延实验.仿真分析和拉延实验表明,零件无起皱现象,开裂现象明显减少,成形充分,最大厚度和最小厚度均符合零件的设计要求.因此,该优化方案能够为汽车零件冲压成形工艺提供参考.

Optimization of cold stamping forming quality of automobile parts

Aiming at the quality problems of wrinkling and cracking in the cold stamping forming process of automobile parts, the sheet material shape and stamping process parameters were optimized by taking the rear floor beam of a certain brand of automobile as an example.Firstly, the shape of the sheet is determined according to the flow of the sheet during drawing and the drawbead design is completed; secondly, the optimal combination of stamping process parameters is determined through orthogonal experiments, and the optimal combination of stamping process parameters is simulated. Simulation analysis and drawing experiments show that the part has no cracking, the wrinkling phenomenon is significantly reduced, the forming is sufficient, and the maximum thickness and minimum thickness meet the design requirements of the part.Therefore, the optimization scheme designed in this paper can provide a reference for stamping and forming of automobile parts.