面向焊点质量检测的白车身关键性能分析  

Analysis of Key Performance for Quality Inspection of Solder Joint of White Body

作　　者：聂昕[1] 何超波[1] 齐利威[1] 

机构地区：[1]湖南大学汽车车身先进设计与制造国家重点实验室,长沙410082

出　　处：《机械科学与技术》2014年第7期1074-1078,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：中央高校基本科研业务费专项资金项目;广西省科技攻关项目(12118007-14B);柳州市科技计划项目(2012A010101);广西科学研究与技术开发计划(12118007-1);国家"十一五"科技支撑计划项目(2009BAE82B01)资助

摘　　要：白车身焊点质量检测应用最为广泛的是超声波检测,传统超声波焊点检测效率较低,同时所检焊点选取仅凭路试和经验确定,耗时较长,并且缺乏相应的理论选定方法。针对某一车型,提出选取关键焊点区域的方法,对传统检测方法进行优化,并且阐述了焊点关键区域选取的具体思路。通过CAE工具,对车身性能进行了强度、碰撞性能分析,选取车身高应力和碰撞过程中高吸能区域进行焊点检测,满足了车身关键性能同时减少了待检焊点个数。Ultrasonic inspection is widely used in quality detection of solder joint of white body. There is the low efficiency of traditional ultrasonic inspection for solder joint. The solder joints are selected only according to the road test and experience, which takes long time and is lack of the theory of selection method. Focusing in car, the method of selecting key spot area is proposed, meanwhile the traditional detection method is optimized, and the idear for selecting the key areas in solder joint is stated. By using CAE tool, the strength and impacted performance for the vehicle performance is analyzed, the solder joints located in the areas that with the high stress and high energy absorption in collision processes are detected, the results show that the method reduces the number of solder joints to be detected and meets the main performance of body.

关 键 词：超声波 焊点 强度 碰撞 

分 类 号：U467.1[机械工程—车辆工程]