控制压边力加载曲线以提高盒形件拉深性能的研究

摘要

压边力的加载方案是否合理对板料成型效果产生重要影响，本文借助于有限元软件Dynaform研究了盒形件在三种典型变压边力加载方式下的拉深成型性能，模拟结果表明，变压力的加载方式可以显著的提高工件成型性能，改善材料的流动，通过变压边力加栽方式的设计方法，为实际生产提供指导作用。%The design of the blank holder force load curve has great effects on the quality to sheet metal forming. The paper discussed the drawing properties of the rectangular box in three different load curve. The simulation results showed that the variable blank holder could improve the quality of rectangular box, improve the flow of the material, providing guidance for real production by the method of variable blank holder force loading system design.