对管状零件进行扩口,如变形稍大些,管口容易破裂,尤其是一些口径小、管壁薄,而扩口直径要求又较大的零件更是如此。我厂产品中的导油管零件,材料为T3紫铜管(φ5×1), 其扩口要求如图1所示。由于扩口直径较大,如用一般冲压方法则不能达到零件的设计要求,后来我们设计出如图2所示的扩口工具,成功地解决了这个问题。 Flaring of the tubular parts, such as slightly larger deformation, the nozzle is easy to rupture, especially some small caliber, thin wall, and the flaring diameter larger parts is even more so. I plant products in the tubing parts, materials for the T3 copper tube (φ5 × 1), its flaring requirements shown in Figure 1. As the flaring diameter larger, such as using the general stamping method can not meet the design requirements of the parts, and later we designed a flare tool shown in Figure 2, successfully solved the problem.