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GUO Chaobo1, FENG Zhen1, CUI Lulu2. Numerical analysis of double pulsed TIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(7): 97-101. DOI: 10.12073/j.hjxb.2018390183
Citation: GUO Chaobo1, FENG Zhen1, CUI Lulu2. Numerical analysis of double pulsed TIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(7): 97-101. DOI: 10.12073/j.hjxb.2018390183

Numerical analysis of double pulsed TIG welding

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  • Received Date: December 22, 2016
  • A three-dimensional unsteady model of double pulse tangsten inert gas (TIG) welding pool is developed. By choosing appropriate boundary conditions, thermal properties and strongly coupling the control equations, the cyclically change regulations of temperature field, flow field and depth and width of the pool are obtained. The cyclically change regulations of pool size are obtained. The results show that the pool size with double pulse current is larger than that with average currents. The variation of pool size lag behind the pulse current is larger, especially under the action of the high energy pulse current and under the action of the double pulse current. The flow velocity is also larger and the stirring effect is stronger within the pool.
  • 黄本生, 杨江, 尹文锋, 等. A-TIG焊研究进展及前景展望[J]. 材料导报, 2016, 30(3):76-80. Huang Bensheng, Yang Jiang, Yin Wenfeng, et al. Research progress and prospect of A-TIG welding[J]. Materials Review, 2016, 30(3):76-80.
    董文超, 陆善平, 李殿中, 等. 焊接电弧与活性组元对TIG焊熔池形貌影响的数值模拟[J]. 焊接学报, 2009, 30(11):49-56. Dong Wenchao, Lu Shanping, Li Dianzhong, et al. Numerical simulation of welding arc and surface activating element on weld shape in TIG welding[J]. Transactions of the China Welding Institution, 2009, 30(11):49-56.[DOI: 10.3321/j.issn:0253-360X.2009.11.013]
    史平安, 万强, 颜怡霞, 等. 焊接熔池流体动力学行为的数值模拟和实验研究[J]. 材料热处理学报, 2017, 38(8):134-144. Shi Ping'an, Wan Qiang, Yan Yixia, et al. Simulation and experimental study on fluid dynamics behavior of welding pool and keyhole in laser welding process[J]. Transactions of Materials and Heat Treatment, 2017, 38(8):134-144.
    张瑞华, 尹燕, 樊丁. A-TIG焊熔深增加机理的数值模拟[J]. 机械工程学报, 2008, 44(5):175-180. Zhang Ruihua, Yin Yan, Fan Ding. Numerical simulation of the mechanism for penetration increasing of A-TIG welding[J]. Chinese Journal of Mechanical Engineering, 2008, 44(5):175-180.[DOI: 10.3321/j.issn:0577-6686.2008.05.029]
    武传松, 郑炜, 吴林. 脉冲电流作用下TIG焊接熔池行为的数值模拟[J]. 金属学报, 1998, 34(4):416-422. Wu Chuansong, Zheng Wei, Wu Lin. Numerical simulation of TIG weld pool behavior under the action of pulsed current[J]. Acta Metallurgica Sinica, 1998, 34(4):416-422.
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