Wang Hailong, Yang Jianwei, Huang Songtao, Jiao Xiangdong. Effect of pulse frequency in high pressure environment on weld formation and properties of ultra-high frequency pulsed TIG welding joint[J]. WELDING & JOINING, 2022, (6). DOI: 10.12073/j.hj.20220215002
Citation: Wang Hailong, Yang Jianwei, Huang Songtao, Jiao Xiangdong. Effect of pulse frequency in high pressure environment on weld formation and properties of ultra-high frequency pulsed TIG welding joint[J]. WELDING & JOINING, 2022, (6). DOI: 10.12073/j.hj.20220215002

Effect of pulse frequency in high pressure environment on weld formation and properties of ultra-high frequency pulsed TIG welding joint

More Information
  • Received Date: February 14, 2022
  • Published Date: June 24, 2022
  • High pressure environment has a great negative effect on welding process.Weld width, penetration, reinforcement and Vickers hardness of welded joint were used as the main evaluation indexes in experiment, influence of ambient pressure and pulse frequency on weld formation and properties of ultra-sonic frequency DC pulse TIG joint was analyzed.Research showed that under the same environmental pressure, as pulse frequency increased, weld width decreased and penetration increased.As pulse frequency increased, width and depth of HAZ decreased accordingly, the overall size of HAZ decreased, which showed that ultrasonic frequency DC pulsed TIG had advantage of reducing heat-affected zone and improving quality of welded joint.Weld width and penetration of filler zone decreased with the increase of pulse frequency, the overall change of reinforcement was not big, and influence of pulsed frequency on reinforcement was limited.The overall trend hardness curves of the weld obtained under different pulse frequencies at the same ambient pressure was the same, and hardness decreased from weld to fusion zone, then to heat affected zone and base metal.With the increase of ambient pressure, cooling rate of weld metal increased, and hardness increased with the increase of brittle-hard structure.
  • [1]
    牛爱军, 毕宗岳, 张高兰.海底管线用管线钢及钢管的研发与应用[J].焊管, 2019, 42(6):1-6.
    [2]
    舟丹.世界海洋油气资源分布[J].中外能源, 2017,22(11): 55.
    [3]
    周守为,李清平,朱海山,等.海洋能源勘探开发技术现状与展望[J].中国工程科学, 2016, 18(2): 19-31.
    [4]
    迟艳芬, 刘照元, 王振刚, 等.X70管线钢厚板多层多道焊残余应力数值分析[J].焊接, 2020(8): 9-15.
    [5]
    李明朝, 李光泉, 周灿丰, 等.API X65深水海底管道J形铺设横向焊接变形[J].焊接, 2020(6): 12-17.
    [6]
    葛华, 黄海滨, 蒋毅, 等.X80管道环缝焊接残余应力数值模拟[J].焊接, 2021(12): 17-23.
    [7]
    杜伟, 王海涛, 郭琛, 等.海上服役钢管的载荷条件及性能要求分析[J].焊管, 2015, 38(12): 28-32.
    [8]
    严春妍, 张浩, 朱子江, 等.X80管线钢多道激光-MIG复合焊残余应力分析[J].焊接学报, 2021, 42(9): 28-34.
    [9]
    孙咸.X80管线钢焊接材料的选择及其应用[J].电焊机, 2019, 49(1):1-9.
    [10]
    蒋力培, 王中辉, 焦向东, 等.水下焊接高压空气环境下GTAW电弧特性[J].焊接学报, 2007,28(6): 1-4.
    [11]
    赵华夏.高压环境焊接电弧特性及熔滴过渡行为研究[D].北京: 北京化工大学, 2010.
    [12]
    崔珍山,齐铂金,王强.超音频脉冲MIG焊接参数对5A06铝合金焊缝成形的影响[J].热加工工艺,2019,48(1):26-29.
    [13]
    刘宏.高压环境下GMAW焊接接头组织和力学性能的研究[D].北京:北京石油化工学院, 2016.
    [14]
    孙清洁.超声-TIG电弧复合焊接方法及电弧行为研究[D].哈尔滨:哈尔滨工业大学, 2010.
  • Related Articles

    [1]LU Xin, LI Dadong, WANG Ruoyu, HUANG Jie. Influence of microstructure on longitudinal section hardness of rail flash butt welded joints[J]. WELDING & JOINING, 2025, (2): 47-54, 75. DOI: 10.12073/j.hj.20240518004
    [2]Wang Yikai, Pang Shixuan, Wang Xieyang, Huang Zenghao, Cao Biao. Power supply for DC superposed high-frequency pulse micro-TIG and its arc characteristics[J]. WELDING & JOINING, 2023, (3): 54-59. DOI: 10.12073/j.hj.20220709001
    [3]Li Jinhua, Ji Dongmei, Cao Yu. Creep properties, microstructure and hardness of T91/TP347H dissimilar steel welded joints[J]. WELDING & JOINING, 2022, (11). DOI: 10.12073/j.hj.20211230001
    [4]Ma Zhibao, Cai Wenhe, Li Weili, Lin Zonghe, Dong Shuqing, Li Fei. Safety assessment and replacement technology of low-hardness P91 steel in site[J]. WELDING & JOINING, 2022, (3). DOI: 10.12073/j.hj.20211210002
    [5]Liu Qicong, Ma Zhen, Lü Peng, Liu Dongmei, Zhuang Minghui. Influence of Cr content on microstructure and hardness of Fe-B-C wear-resistant alloy surfacing layer[J]. WELDING & JOINING, 2022, (2). DOI: 10.12073/j.hj.20211116001
    [6]Li He, Wang Lei, Huang Yong, Zhou Ming, Zhou Qi, Wang Kehong. Effect of preheating on microstructure and hardness of AH36 laser weld[J]. WELDING & JOINING, 2021, (10): 25-28. DOI: 10.12073/j.hj.20210818003
    [7]JIANG Bao, LEI Zhen, HUANG Ruisheng, YANG Yicheng, LIANG Xiaomei. Formation of weld by high-power fiber laser-MAG hybrid welding[J]. WELDING & JOINING, 2020, (6): 5-11,32. DOI: 10.12073/j.hj.20200424004
    [8]WANG Fei, LIU Yaolin, ZHANG Qiang. Application of AC and DC pulse TIG in thin wall copper pipe welding[J]. WELDING & JOINING, 2019, (10): 62-64. DOI: 10.12073/j.hj.20190320001
    [9]ZHU Haiyang, LIU Chuan, ZOU Jiasheng. Effect of ultrasonic impact treatment on residual stress microstructure and hardness in Q460 high-strength steel welded joint[J]. WELDING & JOINING, 2018, (8): 11-13.
    [10]Wang Chang, Zhang Tao, Fu Mingjie, Cai Hengxin. Microstructure and properties of TIG welding on TNW700 titanium alloy sheets[J]. WELDING & JOINING, 2017, (11): 54-57.
  • Cited by

    Periodical cited type(1)

    1. 张加恒,黄祎,郭顺,杨东青,闫德俊,李东,王克鸿. 超音频MIG辅助三丝电弧增材制造工艺研究. 电焊机. 2023(02): 104-110 .

    Other cited types(0)

Catalog

    Article views (23) PDF downloads (23) Cited by(1)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return