冷冲压各种变形工序(步)工作压力和功的确定是编制冷冲压工艺文件、选用冲压设备、设计冲压模的主要依据。但用计算法确定冷冲压变形工序的工作压力和功,不管是使用理论计算公式还是经验公式,一般都比较繁琐,不仅费事而且容易出现差错。有些计算公式的基本参数、系数需要从其他多种技术资料或专业书籍中查找,现场使用甚不方便。这里介绍的图算法是把复杂而繁琐的理论计算,绘制成确定各种冷冲压变形工序工作压力和功的列线图或曲线图,图算方法简便、迅速、准确,现场使用方便。长期实践的经验说明,使用该图算法不仅节省时 Cold stamping a variety of deformation processes (steps) Determination of work pressure and work is the preparation of cold stamping process documents, selection of stamping equipment, the main basis for the design of stamping die. However, the calculation method to determine the working pressure and work of cold stamping deformation process, whether using the theoretical formula or empirical formula, are generally more complicated, not only complicated but also prone to error. Some of the basic parameters of the formula, the coefficient needs to be from a variety of other technical information or professional books to find, on-site use is not convenient. The graph algorithm introduced here is a complex and cumbersome theoretical calculation, drawn to determine a variety of cold stamping deformation process work pressure and work nomogram or graph, graph calculation method is simple, rapid, accurate, easy to use on-site. Long experience of practice shows that using the graph algorithm not only saves time