拉延成形中的压边技术

The Control Technique of the Blank-holder Force in Drawing Process

在冲压拉延过程中 ,存在着一个严重的工艺问题——起皱 ,防止起皱的主要措施是在拉延模具上增设压边机构。通过各种压边技术及其压边结构 ,对各种压边技术的特点进行分析和比较 ,并对其在生产实际中的应用范围及应用前景作出了客观的评价 。

The problem of crinkling is fatal in the drawing process.The common and effective way to diminish and eliminate the phenomenon is to set a blank holder on the stamping die.In this paper,various blank holding techniques and their devices are described,their characteristic are compared,and their applicability in the manufacture and development are evaluated objectively.The highlight is concentrated on the modern advanced control technique,and the prediction on its developing tendency and research aspects hereafter.