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Mg、Cu合金急冷箔微型储能电阻焊连接特性对比分析

Connection characteristics comparison of rapid quenched Mg and Cu alloy foils by micro-type energy-storage spot welding

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【Author】 XU Jin-feng12, ZHAI Qiu-ya’, LIANG Xiu-mei1 JIANG Yong’,HAN Ll-qiang’(l.School of Materials Science and Engineering, Xi’ an U-niversity of Technology,Xi’ an 710048, Chian; 2.Laboratory of Material Science in Space, North western Polytechnical University, Xi’ an 710072, Chian).p77~79,83

【机构】西安理工大学材料学院,西安理工大学材料学院,西安理工大学材料学院,西安理工大学材料学院,西安理工大学材料学院西安710048；西北工业大学应用物理系,西安710072,西安710048,西安710048,西安710048,西安710048；

【摘要】应用自制微型电容储能电阻焊机分别对AZ91D镁合金以及Cu-40%Co(质量分数)合金箔带进行了微型储能电阻点焊连接,获得了组织健全的连接接头。研究发现,AZ91D/AZ91D镁合金、Cu-Co/Cu-Co合金箔带的点焊接头均由熔核、熔核周围的热影响区、以及由熔核向热影响区过渡的半熔化区(熔合线)组成。镁合金接头具有规则的卵形熔核,而铜合金接头则出现扁平状的熔核。选用如下工艺参数,可获得组织致密的点焊接头。镁合金工艺参数为:焊接能量1.5～2.0J、焊接电压80V、电极压力10～20N;铜合金工艺参数为:焊接能量6.0～8.0J、焊接电压80V、电极压力4～8N。更多还原

【Abstract】 The connection characteristics of rapid quenched Cu-40wt%Co and AZ91D Mg alloy foils has been studied using a selfdeveloped microtype energystorage welding machine. The ideal connecvtion joints have been obtained. The spot welded joints of both AZ91D Mg and Cu 40wt% Co alloy foils are composed of nugget,heataffected zone. The joint morphology of Mg alloy foils is characterized by a regular ellipsoidal nugget, while those of Cu alloy foils exhibit the flat nugget. To obtain the high quality spot welded joint,the welding parameters are determined as: welding energy L5-2.0J, welding voltage 80V, and electrode pressure 10-20N for AZ91D Mg alloy foils; and 6.0-8.0J; 80~100V;and 4-8N for CuCo alloy foils respectively.更多还原

【关键词】 Cu-Co合金； AZ91D镁合金；急冷箔；电容储能电阻焊；接头组织；
【Key words】 Cu - Co alloy； AZ91D； rapid quenched foils； energystorage welding； microstructure of joint；

【文献出处】焊接学报 ,Transactions of The China Welding Institution , 编辑部邮箱 ,2004年02期

【分类号】TG406
【被引频次】11
【下载频次】195

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