论文部分内容阅读
图1是自行车上的后接头,其中的带沿小孔需进行翻边。工艺是先用专机进行钻孔,然后用翻边模翻孔。
Figure 1 is a bicycle rear connector, the belt along the hole to be flanging. Process is to use a special plane for drilling, and then turn the flange type flip hole.