极性比对高速方波交流TIG-MIG复合焊电弧稳定性及焊缝成形的影响
Effect of Polarity Ratio on the Arc Stability and Weld Formation of High Speed Square Wave AC TIG-MIG Hybrid Welding
- 2022年52卷第7期 页码:39-44
DOI: 10.7512/j.issn.1001-2303.2022.07.06
扫 描 看 全 文
扫 描 看 全 文
陈东升,王恒,陈茂爱,等.极性比对高速方波交流TIG-MIG复合焊电弧稳定性及焊缝成形的影响[J].电焊机,2022,52(7):39-44.
CHEN Dongsheng, WANG Heng, CHEN Maoai, et al.Effect of Polarity Ratio on the Arc Stability and Weld Formation of High Speed Square Wave AC TIG-MIG Hybrid Welding[J].Electric Welding Machine, 2022, 52(7): 39-44.
通过板上堆焊研究了极性比对高速方波交流TIG-MIG复合焊焊接过程稳定性和焊缝成形的影响。结果表明,TIG电弧极性比为0(直流TIG)时,由于TIG和MIG两个电弧之间相互排斥作用时间长,小电流(不高于50 A)TIG电弧电流易因过度拉长而熄灭,TIG-MIG复合焊接过程稳定性差,焊缝成形不良。TIG电弧极性比控制在10~40时,两个电弧之间周期性地排斥和吸引,小电流TIG电弧不会过度拉长,可在50 A的TIG电弧电流下获得稳定的TIG-MIG复合焊过程,可抑制直流TIG-MIG复合焊易于产生的驼峰缺陷,极性比为10时焊缝成形最佳。极性比过大时,焊缝表面光滑程度有所下降,焊趾部位呈现明显的波动,且存在较多的大颗粒飞溅。
The effects of polarity ratio on the stability and weld formation of high speed square wave AC TIG-MIG hybrid welding process were studied by using bead on plate welding experiment for . It is found that when the polarity ratio of TIG arc is zero, low current TIG arc is susceptible to distinguishing due to its over-elongation caused by long time mutual repulsion between TIG and MIG arcs. TIG-MIG hybrid welding process is unstable and weld formation is poor. When the polarity ratio of TIG arc is in the range of 10 ~ 40, a stable TIG-MIG hybrid welding process can be obtained under the TIG arc current of 50A, and the hump defects easy to occur in DC TIG-MIG hybrid welding can be suppressed。 When the polarity ratio is 10, the weld forming is the best. When the polarity ratio is too large, the smoothness of the weld surface decreases, the weld toe fluctuates obviously, and there are more large particle spatters.
飞溅极性比焊缝成形TIG-MIG复合焊驼峰缺陷
spatterpolarity ratioweld formationTIG-MIG hybrid weldinghump defect
Kanemaru S, Sasaki T, Sato T, et al. Study for TIG–MIG hybrid welding process[J]. Welding in the World, 2014, 58(1): 11-18.
Kanemaru S, Sasaki T, Sato T, et al. Study for the mechanism of TIG-MIG hybrid welding process[J]. Welding in the World, 2015, 59(2): 261-268.
娄小飞. TIG-MIG复合焊电弧形态及熔滴过渡行为研究[D]. 山东:山东大学, 2014.
LOU Xiaofei. Study on Arc Appearance and Droplet Transfer of TIG-MIG Hybrid Welding[D]. Shandong:Shandong University, 2014.
娄小飞,陈茂爱,武传松,等. 高速TIG-MIG复合焊驼峰及咬边消除机理研究[J]. 焊接学报, 2014, 35(8):87-90.
LOU Xiaofei, CHEN Maoai, WU Chuansong,et al. Humping and undercutting suppression mechanism for high speed TIG-MIG hybrid welding[J]. Transactions of the China Welding Institution, 2014, 35(8):87-90.
陈姬, 武传松. 高速GMAW驼峰焊道形成过程的数值分析[J]. 金属学报,2009,45(9):1070-1076.
Chen J, Wu C S. Numerical analysis of hump weld bead formation process in high speed GMAW[J]. Acta Metallurgica Sinica, 2009, 45(9): 1070-1076.
Chen J, Wu C S, Chen M A. Improvement of welding heat source models for TIG-MIG hybrid welding process[J]. Journal of Manufacturing Processes, 2014, 16(4): 485-493.
崔双双. TIG-MIG复合电弧熔滴行为数值分析[D]. 山东:山东大学, 2020.
Cui Shuangshuang. Numerical simulation of arc and metal transfer behavior of TIG-MIG Hybrid Welding[D]. Shandong:Shandong University, 2020.
杨涛, 张生虎, 高洪明,等. TIG-MIG复合焊电弧特性机理分析[J]. 焊接学报, 2012, 33(7):25-28.
YANG Tao, ZHANG Shenghu, GAO Hongming,et al. Analysis of arc characteristics and mechanism of TIG-MIG hybrid welding[J]. Transactions of the China Welding Institution, 2012, 33(7):25-28.
陈姬,宗然,武传松,等. TIG-MIG复合焊电弧间相互作用对焊接过程的影响[J]. 机械工程学报, 2016,52(6):59-63.
CHEN J,ZONG R,WU C S,et al. Influence of Arcs Interaction on TIG-MIG Hybrid[J]. Welding Process Jo-urnal of Mechanical Engineering,2016,52(6):59-63.
高海光. 交流TIG-MIG复合焊的电弧物理特性及工艺研究[D]. 山东:山东大学, 2016.
Gao Haiguang. Study on arc physics and welding procedure of AC TIG-MIG Hybrid Welding[D]. Shandong:Shandong University, 2016.
相关作者
相关机构