汽车钣金论文报告资料.doc

汽车车身钣金维修 摘 要：汽车钣金维修是针对汽车碰撞所产生的大小损伤进行修复的工作，即汽车车身修复。车身碰撞损伤恢复程度的好坏，将直接影响到该车修复后的使用性能和安全结构。Automobile body sheet metal repair Abstract: automotive sheet metal repair is the size of damage produced in automotive collision repair work, namely the auto body repair. The degree of recovery of the body collision damage is good or bad, will directly affect the car after the restoration of the performance and safety structure. Repair has vehicle collision accidents are no longer simple automotive sheet metal by hammering, the quality of the repair can not rely solely on the human eye to observe the appearance of the vehicle gap, repair personnel not only to understand the technical parameters and the size of the body, must grasp the body material characteristics, characteristics of stress transfer body deformation and stress points and production trends process the body, such as welding etc.. Based on mastering the knowledge, repair personnel must use the advanced measurement tools, the indirect damage deformation judge body directly, make body repair scheme is complete, with the body repair scheme is correct, will return to the car body of the key points to the original location. Keywords: crack; concave doors; measurement; body repair 目 录 摘要……………………………………………………………………1 关键词…………………………………………………………………1 1 概述…………………………………………………………………3 2 钣金维修常用工具…………………………………………………3 2.1 常用工具 ……………………………………………………………………3 2.2 车身修理工具 ………………………………………………………………3 3 汽车修复技术工艺 …………………………………………………4 3.1 对车身损伤认定的基本方法及该车的损伤程度……………………………4 3.2 对车身数据进行测量及工具的选择使用……………………………………4 3.3 根据对事故车的测量和查看确定修复方案…………………………………6 3.4 对车身进行拉伸修复及修复方法的分析………………………………8 结论………………………………………………………………………9 参考文献…………………………………………………………………10 1、概述 随着汽车技术的发展，汽车的车身结构特别是轿车车身的材料、结构也发生了变化，承载式车身的应用越来越广泛。当车身受到撞击变形后,对车身修复整形要求较高,因为整形后车身上各点相互之间的位置关系不仅影响外形美观,还会影响到车轮定位,底盘各总成相对位置,操纵件运动是否干涉等一系列关键问题。钣金修复不只是为了恢复外形，而更重要的是尽最大的努力使整个车身壳体恢复到损伤前的状态，以保证修复过的汽车不因为车身修复而出现“二次事故”。所以这些必须应用先进的设备，进行规范作业，严把质量关，以满足车身维修作业高标准、高质量的要求。 2、钣金维修常用手工工具 汽车钣金常用手工工具包括：通用工具、车身修