【作者】 张小云； 卢兵兵； 孙志成；

【Author】 Zhang Xiaoyun;Lu Bingbing;Sun Zhicheng;Vehicle Manufacturing Engineering,Shanghai General Motors Co.,Ltd.;

【机构】 上海通用汽车有限公司整车制造工程部；

【摘要】 随着对汽车安全性能要求的日益提高,车顶的连接强度也越来越受到重视,尤其是当车辆发生碰撞而颠覆时,车顶的连接强度将直接影响车内乘务人员生命安全。车顶和侧围的连接也一直是白车身制造中的关键连接技术之一,本文着重介绍几种现有的车顶与侧围连接方式,除了传统的电阻点焊外,还包括激光焊接、激光钎焊、等离子钎焊、复合连接等,分别介绍它们成本、工艺、技术方面的优缺点,为今后白车身车顶与侧围的连接设计提供参考。更多还原

【Abstract】 As the increase of requirement for automobiles safety performance,strength of roof to body-side joint is becoming more and more important.It will affect human security especially when the automobile turn over after crash.This paper will generally introduce the present joining methods of roof to body-side including laser welding,laser brazing,plasma brazing,hybrid joining besides traditional resistance spot welding.The cost,process,technical advantage and disadvantage are related.更多还原