基于统计分析的铝合金点焊工艺优化与质量判定  

Process Optimization and Quality Judgment of Aluminum Alloy Resistance Spot Welding Based on Statistic Analysis

作　　者：潘存海[1] 杜素梅[1] 

机构地区：[1]天津科技大学机械工程学院,天津300222

出　　处：《天津科技大学学报》2007年第2期36-39,共4页Journal of Tianjin University of Science & Technology

基　　金：天津市自然科学基金资助项目(05YFJMJC02600);天津科技大学引进人才科研启动基金资助项目(20050404)

摘　　要：采用多传感器同步采集系统实现了铝合金点焊质量监测.通过双因素方差分析优化并确定了铝合金点焊工艺规范.研究发现:位移传感器测量未熔合或未完全熔合焊点位移信号的极差比另外两类焊点低1.0 V左右;点焊电压信号、电极位移信号和电极压力信号包含明显的喷溅特征信息.进而利用统计分析可以实现点焊质量判定与分类.Resistance spot welding quality monitoring of aluminum alloy was realized by multiple-sensor synchronous collection system. RSW process was optimized and confirmed based on two-factor variance analysis. Study conclusion shows that the electrode displacement signal range of the undersize welds is lower about 1.0V than other two kinds of welds. RSW voltage signal, electrode displacement signal and electrode pressure signal contain explicit expulsion characteristic information. At same time, RSW quality judgment and classification can be implemented using statistic analysis.

关 键 词：电阻点焊 铝合金 统计分析 工艺优化 质量判定 

分 类 号：TG409[金属学及工艺—焊接]