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后桥是汽车的主要承力部件。目前工业发达的国家已用焊接结构代替了铸造结构,使其重量和生产成本比铸造后桥低30％左右,质量也有明显提高。我们与扬州汽车修配厂合作,进行了载重为4吨的大型客车及货车焊接后桥的试验工作,81年1月试生产获得了成功。一、工艺方法混合气体保护焊(Ar+CO_2)是近年发展起来的一种方法。其优点不仅能改善熔滴过渡,减少飞溅,提高质量,更重
The rear axle is the main load-bearing part of the car. At present, the industrialized countries have replaced the casting structure with welding structure, making the weight and production cost about 30% lower than that of the post-casting bridge, and the quality is obviously improved. In cooperation with Yangzhou Auto Parts Factory, we conducted trial work on the welded rear axle of 4-tonne passenger cars and trucks after welding. In January 81, our trial production was successful. First, the process method Mixed gas shielded welding (Ar + CO_2) is a method developed in recent years. Its advantages not only improve the droplet transfer, reduce spatter, improve quality, heavier