摩托车生产中,有大量的螺钉与板材的焊接结构,这种结构可使联结过程简单化。图1所示为我厂某车型上螺钉与板材的凸焊结构。在专螺钉上冲出了3个凸点,然后凸焊在板材上。由于这种螺钉的用量远少于标准件螺钉,标准件厂不愿生产,只好本厂生产。采用自动车车形,冲凸点工艺加工,可是螺纹烂牙的 Motorcycle production, there are a large number of screws and plate welding structure, this structure can simplify the connection process. Figure 1 shows a model of our plant screw and plate projection welding structure. In the special screw out of the three bumps, and then convex welding plate. As the amount of such screws is much less than the standard screws, standard parts factory reluctant to produce, but the factory production. The use of automatic car-shaped, red bump process, but the thread rotten teeth