万能钣金冷成型机成型工艺分析

摘要

In the actual production,process of shaping,bending and stretching of metal parts with three dimensional surface is existed,it is found that the defect presence of fold,crack and scratch is due to the more complex shape of parts and irregularity of the work.The aforesaid forming process can be achieved by means of molding,but it shall led to increase production cost and delivery schedule.Based on the investigation of universal sheet metal forming technology,it is found this technique is affectire,and in collaboration with multi shaping tools,it can be used for the forming process of metal parts with three dimension surface.Hence,the fabrication of complex metal parts can be realized from any defect,like folding, crack and so on.%在实际生产过程中，有很多成型类零件存在三维曲面的成型、弯曲和拉伸等。由于零件外形比较复杂，展开形状不规则，且成型过程中受材料应力等因素的影响，零件会出现皱褶、拉裂和表面划伤等缺陷，所以此类零件成型比较困难。若采用模具成型，模具从设计制造到投入使用，不仅周期长，而且模具制造费用高，零件的制造成本会大幅上升。针对上述问题，通过选取典型零件对万能钣金冷成型技术进行了工艺研究，发现万能钣金冷成型机可对型材、三维曲面直接成型，并具有消除皱痕的功能，若配合多种成型工具，即可完成多种成型类零件的加工。