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生产薄壁厚边筒形件的工艺我厂生产如图1所示的薄壁厚边筒形零件,材料是25钢。原采用圆钢车削而成,既浪费材料又浪费工时,工艺比较落后。另外这种材料的引伸塑性较小,进行多次引伸比较困难,而且零件各处厚度不一,壁部厚度要求为1.3毫米、边部厚度要求为3.5毫米、底部厚度要求为2毫米。因此采用单纯的冲压工艺也难以达到目的,我们试验用引伸、变薄引伸和冷墩相结合的工艺在冲床上生产该零件。经过长期考验证明效果良好,节省原材料6倍多,提高工效一倍多,也提高了零件的强度。
Production of thin-walled edge of the cylinder-shaped pieces of the process I plant the production shown in Figure 1 thin-walled side-cylindrical parts, the material is 25 steel. The original use of round steel turning, both waste of materials and a waste of working hours, technology is relatively backward. In addition, this material is less ductile plastic, it is more difficult to conduct multiple extensions, and the thickness of the parts varies from place to place. The thickness of the wall is 1.3 millimeters, the thickness of the side is 3.5 millimeters and the thickness of the bottom is 2 millimeters. Therefore, using a simple stamping process is also difficult to achieve the goal, we test the extension, thinning extension and cold pier combination process in the punch on the production of the parts. After a long period of tests prove that the effect is good, saving 6 times raw materials, improve work efficiency more than doubled, but also improve the strength of the parts.