汽车车身轻量化主要措施是在车身制造中大量使铝合金等有色金属，传统的焊接工艺对于这些材料间的连接是无能为力的。
The lightweight of vehicle body is achieved by using nonferrous metal materials such as aluminum alloys, which cannot be welded by traditional welding techniques.
它可以对多种熔化焊接性差的有色金属等材料进行可靠的连接，而且连接工艺简单，有较好的工艺适应性。
It can join many materials reliably which are difficult to weld by using conventional fusion techniques. The process of FSW is simple with well applicability.
本发明属于有色材料的加工领域，适用于所有铝及铝合金焊接 材料产品的批量生产；
The invention belongs to the machining field of colored materials, applied to batch production of all aluminum and aluminum alloy welding materials;
本发明属于有色材料的加工领域，适用于所有铝及铝合金焊接 材料产品的批量生产；
The invention belongs to the machining field of colored materials, applied to batch production of all aluminum and aluminum alloy welding materials;
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