铝合金点焊热膨胀电极位移法质量实时控制的研究  

REAL TIME CONTROL WITH METHODOF ELECTRODE EXPANSION DISPLACEMENT FOR SPOT WELDING QUALITY OF ALUMINIUMZALLOY

作　　者：姜以宏[1] 高洪明[1] 叶广郁[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《焊接》1995年第3期7-11,共5页Welding & Joining

摘　　要：对热膨胀电极位移法在铝合金点焊质量实时控制方面应用的可行性进行了研究.利用自行研制的三相直流冲击波式点焊实验装置,采用闭环反馈控制,对1.0mm+1.0mmLF6铝合金进行了试验.试验表明,系统对网络电压波动、电极压力波动、电极磨损以及焊点分流等因素所产生的影响能够给予有效补偿.The feasibility for themal expansion displacement of electrode during aluminium alloy spot welding proccess to be used as a real time quality control method is studied. The welding experiment to 1. 0mm + 1.0mm LF6 aluminium alloy sheets is carried out using a clos ed loop feedback principle. The results show that the system can effectively compensate for the fluctuations both on main voltage and on electrode pressure , also for electrode to beworn out and spot shunting.

关 键 词：铝合金 热膨胀 电极位移法 点焊 质量控制 

分 类 号：TG457.14[金属学及工艺—焊接]