脉冲激光与脉冲GMAW复合焊接的动态交互行为
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摘要
将连续激光、脉冲激光分别与脉冲GMAW(熔化极气体保护焊)进行复合,研究了不同复合焊接模式下激光离子体与电弧等离子体的动态交互行为。研究结果表明:与连续激光+脉冲GMAW复合焊接模式相比,脉冲激光+脉冲GMAW复合焊接模式可以在激光平均功率较小的情况下获得更大的熔深;在复合过程中,当激光脉冲峰值出现的时刻错开电流峰值的上升期时,这一瞬态时刻等离子体的急剧膨胀现象可以得到抑制,激光能量的传输可以得到改善。
Continue laser or pulse laser is combined with the pulse gas metal arc welding(GMAW) to study the dynamic interaction behavior of laser plasma and arc plasma at different hybrid welding modes. The study results show that the pulse laser+pulse GMAW hybrid welding mode can achieve a higher penetration than continuum laser+pulse GMAW hybrid welding under a low average power condition. It is found that if the peak time of the laser pulse has a phase shift with the arc current pulse rise period, the phenomenon of rapid expansion of the plasma at this transient moment can be suppressed, thus improve the transmission of laser energy.
Continue laser or pulse laser is combined with the pulse gas metal arc welding(GMAW) to study the dynamic interaction behavior of laser plasma and arc plasma at different hybrid welding modes. The study results show that the pulse laser+pulse GMAW hybrid welding mode can achieve a higher penetration than continuum laser+pulse GMAW hybrid welding under a low average power condition. It is found that if the peak time of the laser pulse has a phase shift with the arc current pulse rise period, the phenomenon of rapid expansion of the plasma at this transient moment can be suppressed, thus improve the transmission of laser energy.
引文
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[19] Peng Y,Chen W Z,Wang C,et al.Controlling the plasma of deep penetration laser welding to increase power efficiency[J].Journal of Physics D:Applied Physics,2001,34(21):3145-3149.
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[21] Steen W M.Arc augmented laser processing of materials[J].Journal of Applied Physics,1980,51(11):5636-5641.
[2] Li Y,Hu S S,Shen J Q.The effect of peak power and pulse duration for dissimilar welding of brass to stainless steel[J].Materials and Manufacturing Processes,2014,29(8):922-927.
[3] Vegelj D,Zajec B,Gregor.Adaptive pulsed-laser welding of electrical laminations[J].Strojni?ki Vestnik—Journal of Mechanical Engineering,2014,60(2):106-114
[4] Li H Y,Tan C W,Zhang Q,et al.Effect of heat source order on coupling mechanism and mechanical properties of joints in laser-arc hybrid welding of HG785D high-strength steels[J].Chinese Journal of Lasers,2018,45(5):0502006.李昊岳,檀财旺,张强,等.热源顺序对HG785D高强钢激光-电弧复合焊耦合机理与接头性能的影响[J].中国激光,2018,45(5):0502006.
[5] Liu J,Li Z,Shi Y,et al.Effect of laser-arc distance on surface flow of laser-GMAW hybrid welding molten pool[J].Chinese Journal of Lasers,2018,45 (10):1002004.刘佳,李忠,石岩,等光丝距对激光-电弧复合焊接熔池表面流动的影响[J].中国激光,2018,45(10):1002004.
[6] Lei Z L,Li B W,Zhu P G,et al.Effect of wavelength on Droplet transition behaviors in laser-CMT hybrid welding process[J].Chinese Journal of Lasers,2018,45(10):1002006.雷正龙,黎炳蔚,朱平国,等.波长对激光-CMT复合焊熔滴过渡行为的影响[J].中国激光,2018,45(10):1002006.
[7] Assuncao E,Williams S.Comparison of continuous wave and pulsed wave laser welding effects[J].Optics and Lasers in Engineering,2013,51(6):674-680.
[8] Wang J,Wang C M,Meng X X,et al.Interaction between laser-induced plasma/vapor and arc plasma during fiber laser-MIG hybrid welding[J].Journal of Mechanical Science and Technology,2011,25(6):1529-1533.
[9] Stute U,Kling R,Hermsdorf J.Interaction between electrical arc and Nd∶YAG laser radiation[J].CIRP Annals,2007,56(1):197-200.
[10] Li Z,Wang Y,Wang W,et al.Analysis on the interaction between laser and MIG plasma[J].International Journal of Applied Electromagnetics and Mechanics,2010,33(1/2):527-532.
[11] Hao X F,Song G.Spectral analysis of the plasma in low-power laser/arc hybrid welding of magnesium alloy[J].IEEE Transactions on Plasma Science,2009,37(1):76-82.
[12] Chen Y B,Lei Z L,Li L Q,et al.Experimental study on welding characteristics of CO2 laser TIG hybrid welding process[J].Science and Technology of Welding and Joining,2006,11(4):403-411.
[13] Chen B,Zhao B,Lei L,et al.Effects of laser induced metal vapour on arc plasma during laser arc double sided welding of 5A06 aluminium alloy[J].Science and Technology of Welding and Joining,2012,17(1):69-76.
[14] Kim Y P,Alam N,Bang H S,et al.Observation of hybrid (cw Nd∶YAG laser+MIG) welding phenomenon in AA 5083 butt joints with different gap condition[J].Science and Technology of Welding and Joining,2006,11(3):295-307.
[15] Katayama S,Naito Y,Uchiumi S,et al.Physical phenomena and porosity prevention mechanism in laser-arc hybrid welding[J].Transactions of JWRI,2006,35 (1):13-18.
[16] Naito Y,Katayama S,Matsunawa A.Keyhole behavior and liquid flow in molten pool during laser-arc hybrid welding[C]//First International Symposium on High-Power Laser Macroprocessing,3 March 2003,2003:357-363.
[17] Cho J H,Na S J.Three-dimensional analysis of molten pool in GMA-laser hybrid welding[J].Welding Journal,2009,88(2):35-43.
[18] Tan X W,Hua X M,Li M X,et al.High speed video photography system based on principle of optical polarization[J].Journal of Shanghai Jiaotong University,2011,45(1):101-104.谭秀文,华学明,李梦醒,等.基于光偏振原理的高速摄像光学系统[J].上海交通大学学报,2011,45(1):101-104.
[19] Peng Y,Chen W Z,Wang C,et al.Controlling the plasma of deep penetration laser welding to increase power efficiency[J].Journal of Physics D:Applied Physics,2001,34(21):3145-3149.
[20] Kim Y S,Eagar T W.Analysis of metal transfer in gas metal arc welding[J].Welding Journal,1993,72:269.
[21] Steen W M.Arc augmented laser processing of materials[J].Journal of Applied Physics,1980,51(11):5636-5641.