本文针对不锈钢制车辆与铝合金制车辆的特点,分别介绍了铁道车辆的车顶板块、端墙板块、车底架组装方面的具有代表性的焊接、接合技术。由于车体的车顶板块等是重要的部位,所以对其外观质量、水密性、气密性等要求较为严格。目前,各车辆制造厂家正在推进焊接自动化、改进生产工艺、引进焊接装置状态监控技术等工作。 In this paper, according to the characteristics of stainless steel vehicles and aluminum alloy vehicles, the representative welding and joining technologies of the roof plates, end wall plates and chassis assembly of railway vehicles are respectively introduced. As the car roof plate is an important part, so the appearance of its quality, water tightness, tightness and other more stringent requirements. At present, the vehicle manufacturers are promoting welding automation, improve production technology, the introduction of welding equipment status monitoring technology and so on.