铝合金薄板交流CMT焊接过程能量分配研究  

Research on energy distribution of AD CMT advanced welding with aluminum alloy sheet

作　　者：张瑞英[1] 穆森[1] 王军[1] 

机构地区：[1]河北科技大学材料科学与工程学院,河北石家庄050018

出　　处：《电焊机》2013年第6期22-26,共5页Electric Welding Machine

摘　　要：以1060铝合金为对象,采用交流CMT焊接技术进行平板堆焊,研究了交流CMT焊接过程中用于母材熔化能量和焊丝熔化能量的精确控制。结果表明,通过变换EN、EP的数值及比例可以对交流CMT焊接过程中的能量分配进行控制进而控制焊缝成形。当EN/EP=1∶1时,焊接过程中输入的总能量不变,由于EN值的变化使对母材连续热输入的方式发生改变,会使熔深余高变化,随着EN个数的增加、熔深逐渐减小、余高逐渐增加。当EN+EP=14时,变化EN的个数。当EN=0时相当于直流反接,此时焊丝的熔化系数最小,熔深最大,余高最小;随着EN的增加,焊缝熔深减小,对焊丝的热输入逐渐增加,余高增加。With AD CMT Advanced welding technology for plate welding on 1060 aluminum alloy targeted ,the influences of polarity transform is studied on weld figuration during AD CMT Advanced welding.The results indicate that transforming EN, EP values and proportion to control the energy during the welding process thereby will control the weld figuration.When the EN/EP of 1：1 ,the total energy input in the welding process is constant, while change on continuous heat input to the base mental, the penetration and width of the weld joint will be changed.Change the number of EN when EN＋EP are 14.When EN is 0,that is equivalent to conventional CMT,wire melting coefficient is minimum,penetration is maximum and width weld joint is minimum.With the increasing of EN weld penetration decreases, the heat input to wire increases gradually and weld width increases.

关 键 词：交流CMT 铝合金 能量分配控制 

分 类 号：TG457.14[金属学及工艺—焊接]