镁合金点焊工艺及焊缝组织分析  

Analysis on the spot welding parameter and welding structure of magnesium alloy

作　　者：范伟光[1] 马天凤[1] 程艳艳[1] 

机构地区：[1]长春工业大学材料科学与工程学院,吉林长春130012

出　　处：《电焊机》2007年第7期31-33,共3页Electric Welding Machine

摘　　要：针对2 mm厚镁合金AZ31B,在工频DN-100型单相交流电阻点焊机上进行了系列点焊实验。通过选择焊接电流、电极压力和焊接时间,确定了合理的工艺参数;经力学性能试验和接头组织分析表明,在电极压力1280 N,焊接时间52周波,预压时间20周波的实验条件下,可以获得性能良好的镁合金AZ31B焊接接头。In allusion to Magnesium alloy AZ31B of 2 mm thick,spot welding experiment was carried at AC single-phase resistance spot welding machine DN-100 type,and confirmed reasonable technical parameter by selecting welding current,pole pressure and welding time,The mechanical property experiment and the analyzing of joint structure indicated thai the best property of alloy Magnesium AZ31B＇s jointing can be obtained under the condition of this experiment.

关 键 词：镁合金 点焊 工艺参数 接头组织 

分 类 号：TG457.14[金属学及工艺—焊接]