广州地铁三号线车辆门角焊接裂纹的防止

Crack preventing of fillet weld of vehicle doors on Guangzhou Metro Line 3

以广州地铁三号线车辆为例,主要从生产环境、工艺、规范参数等方面介绍了地铁车辆铝合金车体门角焊接裂纹的防止措施,以及铝合金门角焊接工艺特点。

Based on the vehicles on Guangzhou Line 3,this paper presents the crack preventing methods of fillet weld of aluminum car body doors from the production conditions,technics,parameters,etc.,and the technics characteristics of fillet weld of aluminum doors.