我厂承揽的四十多个饮料罐中,有容量为0.4t、外径为780mm到容量为2t、外径为1400mm等十几个品种。饮料罐的材料为2～3mm厚的1Cr18Ni9Ti不锈钢板。采用氩弧焊接,并要求罐的外表造形美观、制作精良,设计时,我们将饮料罐的上下封头边缘处设计为R50mm(见图1)。然而在其它工艺条件均具备的情况下,R50mm反而成为制作饮料罐的关键问题:如使用模具压制,则模具品种多、要求加工精细,我厂缺少大设备,仅有一台300t油压机也无法压 I plant the contract of more than 40 beverage cans, a capacity of 0.4t, an outer diameter of 780mm to a capacity of 2t, an outer diameter of more than a dozen varieties such as 1400mm. Beverage tank material is 2 ~ 3mm thick 1Cr18Ni9Ti stainless steel plate. TIG welding was used and the appearance of the can was aesthetically pleasing and well made. In design, we designed the rim of the top and bottom of the beverage can to R50mm (see Figure 1). However, under other conditions, the R50mm has become a key issue in making beverage cans. If the mold is used for pressing, the number of molds is large and requires fine processing. Our factory lacks large equipment, and only one 300t hydraulic press can not press