图1所示管接头原来是用φ16毫米铜棒车制,现在我们改用φ9×1毫米的铜管冲滚复合加工成形。成形过程如下:切管,冲制凸缘(见图2),滚槽封口(图3)。冲凸缘在5吨冲床上进行,滚槽封口在普通车床上完成。工艺改革后,显著地提高了工效,改进了质量,节约了材料降低了成本。 The pipe fitting shown in Fig. 1 was originally made of φ16 mm copper rod, and now we use the φ9 × 1 mm copper pipe compounding process. The forming process is as follows: pipe cutting, punching the flange (see Figure 2), groove seal (Figure 3). Chong flange in the 5 tons of punch on the roll groove seal in the ordinary lathe to complete. Process reform, significantly improve the work efficiency, improve quality, save material and reduce costs.