我厂铆焊车间十多年来,一直是沿用手工冷弯圆锥体的工艺方法,工人的劳动强度大,噪音大,生产效率很低。今年,车间接受了制作70吨和35吨集装箱的重要生产任务。箱体的上部和下部都是圆锥体(图1),上圆锥体板厚18毫米,重2890公斤;下圆锥体板厚14毫米,重3010公斤;箱体 For more than a decade, our factory has been following the craft of cold bending cone by hand. The labor intensity of workers is high, the noise is big, and the production efficiency is very low. This year, the shop accepted the important production tasks for making 70-ton and 35-ton containers. The top and bottom of the box are all cones (Figure 1), the upper cone thickness of 18 mm, weighing 2890 kg; cone under the plate thickness of 14 mm, weighing 3010 kg; box