摘要
采用高频脉冲电流复合MIG电弧对6N01铝合金进行平板堆焊,采集焊接过程中的电压、电流信号,采用高速摄像拍摄熔滴过渡过程,分析高频频率对焊缝成形和熔滴过渡的影响。结果表明:复合高频脉冲电流增加了焊缝熔深和熔宽,频率为45 kHz时最大。复合高脉冲电流消除了电弧电压信号陡升陡降情况,电弧更稳定,熔滴过渡时在焊丝末端的残留部分减少,提高了焊接传质效率。
The flat plate surfacing for 6N01 aluminum alloy was carried out by high frequency pulse current hybrid MIG welding.The voltage and current signals during the welding process were collected.The droplet transfer processes were shot by high-speed camera.The influence of high frequency on weld formation and droplet transfer was analyzed.The results show that the weld penetration and weld width increase by hybridizing high frequency pulse current.When the high frequency of pulse current is 45 kHz,the weld penetration and weld width were the largest.Hybrid high frequency pulse current eliminates sharp rise and fall of the arc voltage signal,and the arc is more stable.The residual portion at the end of the wire reduces during the droplet transfer,which was beneficial to improving the efficiency of mass transfer.
作者
张昱
李冀东
丁鑫健
梁志敏
王立伟
ZHANG Yu;LI Jidong;DING Xinjian;LIANG Zhimin;WANG Liwei(Department of Computer,Shijiazhuang Vocational Technical College of Post and Telecommunication,Shijiazhuang 050021,China;School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050000,China)
出处
《热加工工艺》
北大核心
2020年第1期152-155,共4页
Hot Working Technology
基金
国家重点研发计划支持项目(2018YFB1502505)
国家自然科学基金资助项目(51875168)
河北省重点研发计划支持项目(19212108D,19250202D).
关键词
铝合金
复合焊接
信号采集和分析
aluminum alloy
hybrid welding
signal acquisition and analysis
作者简介
张昱(1980-),女,河北石家庄人,副教授,硕士,主要研究方向:计算机检测技术,电话:13623310620,E-mail:zhangyu8098@163.com;通讯作者:王立伟(1980-),男,河北柏乡人,工程师,博士,主要研究方向:焊接工艺和增材制造技术,电话:15531130127,E-mail:wangliwei110127@163.com
