175型柴油机油箱盖壳原生产工艺为:落料压形——压外圆波形边——齐边。经过改进,把前两道工序合并为一道:落料成型——齐边。改进后节省了一道工序,减少了一套模具,效果稳定,质量良好。图3为改进后的成型模,设备为35吨冲床。最近我们又将180 N型柴油机的油箱盖壳(高度8变为13毫米),用相同结构的模具成型,也获得成功,现已成批投产。 175 diesel fuel tank lid shell of the original production process: blanking pressure - the outer edge of the waveform edge - Qi edge. After the improvement, the first two processes into one: blanking forming - Qi edge. Improved to save a process, reducing a set of molds, the effect is stable, good quality. Figure 3 is an improved die, the equipment is 35 tons punch. Recently, we again 180 N-type diesel engine fuel tank cover (height of 8 into 13 mm), with the same structure of the mold forming, but also successful, is now put into bulk production.