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材料导报  2021, Vol. 35 Issue (z2): 353-357    
  金属与金属基复合材料 |
A-TIG焊接方法研究现状及展望
刘自刚, 周晓静, 朱婷婷, 陈亮, 陈飞, 许强
诺力智能装备股份有限公司,浙江省智能物流装备工程技术研究中心,湖州 313100
Research Status and Prospect of A-TIG Welding Method
LIU Zigang, ZHOU Xiaojing, ZHU Tingting, CHEN Liang, CHEN Fei, XU Qaing
Engineering Research Center of Intelligent Logistics Equipment of Zhejiang Province, Noblelift Intelligent Equipment Co., Ltd., Huzhou 313100, China
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摘要 TIG焊作为一种高质量焊接方法的代表,具有焊接过程稳定、焊缝成形美观、焊缝质量高、焊接过程无飞溅等优点,但同时也存在单道焊接熔深浅、焊接速度慢、熔敷速率低等缺点。为了克服TIG焊存在的缺点,提出了A-TIG焊接方法,该焊接方法是先在待焊焊道表面涂覆一层活性剂,然后再进行施焊。该焊接方法在保留TIG焊优点的前提下,可以显著增大TIG焊单道焊接熔深,提高焊接生产效率。   近几年很多学者对A-TIG进行了大量研究,也开展了A-TIG焊在工业生产上的部分应用,但是A-TIG焊仍存在以下几方面问题:(1)A-TIG焊接需要涂覆活性剂的工序,不利于实现焊接过程的自动化,且活性剂的涂覆很难保证均匀稳定,限制了其在工业生产上的应用。(2)活性剂增大焊缝熔深的机理尚未形成统一的认识,对该机理的研究还不够深入。(3)需要针对不同的焊接母材开发不同的活性剂,且不同学者开发的活性剂千差万别,缺少统一的衡量标准,不利于活性剂的产业化。   针对不锈钢、铝合金、钛合金、镁合金、低碳钢等各焊接母材开发了增大熔深效果比较明显的活性焊剂,并且研究了活性焊剂对焊缝的表面成形和组织性能的影响。在活性剂的引入方面提出了气体输送活性剂的方式,基本实现了焊接过程的自动化和活性剂的均匀涂覆。对于活性剂增大焊缝熔深机理方面,提出了熔池表面张力改变理论、电弧收缩理论和热输入增加理论。   本文总结了A-TIG焊在不同焊接母材方面、活性剂的引入方面、熔深增大机理方面的研究进展,分析了A-TIG焊研究应用方面仍存在的问题,并对A-TIG将来的研究方向进行了前景展望,以期为进一步完善A-TIG焊接方法和推动A-TIG在工业生产上的应用提供一定的借鉴。
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刘自刚
周晓静
朱婷婷
陈亮
陈飞
许强
关键词:  A-TIG焊  焊接熔深  活性剂  电弧收缩  Marangoni对流    
Abstract: As a representative of high quality welding method, TIG welding has the advantages of stable welding process, beautiful weld forming, high weld quality and no spatter in the welding process, but at the same time, it also has the disadvantages of single weld depth, slow welding speed and low depositionrate.In order to overcome the shortcomings of TIG welding, the A-TIG welding method is proposed. The welding method is to apply a layer of active agent on the surface of the weld bead.Then the welding is carried out.Under the premise of retaining the advantages of TIG welding, this welding method can significantly increase the penetration depth of single pass TIG welding and improve the welding production efficiency. In recent years, many scholars for a lot of work on A-TIG, also conducted A-TIG welding part of the application in industrial production, but A-TIG research still exist the following problems: (1) A-TIG welding need to coating process of surfactant, is not conducive to realize the automation of welding process, and surfactant coating is very difficult to guarantee the uniform stability, limits its application in industrial production.(2) There is no unified understanding of the mechanism of the active agent increasing the weld penetration depth, and the research on this mechanism is not deep enough.(3) Different active agents need to be developed for different welding base materials, and the active agents developed by different scholars vary greatly, and the lack of a unified measurement standard is not conducive to the industrialization of active agents. Active flux was developed for stainless steel, aluminum alloy, titanium alloy, magnesium alloy, low carbon steel and other base materials, and the influence of active flux on the surface formation and microstructure properties of the weld was studied.In the aspect of introducing the active agent, the way of conveying the active agent by gas is proposed, which basically realizes the automation of the welding process and the uniform coating of the active agent.For the mechanism of increasing the depth of weld with active agent, the theory of changing the surface tension of weld pool, the theory of arc shrinkage and the theory of increasing heat input are put forward. This paper summarizes A-TIG in different welding mother material, the adding of surfactant, increase penetration mechanism of the progress in research of A - TIG welding is analyzed problems still exist in research applications, and A-TIG future research direction for the outlook, so as to further perfect A-TIG welding method research and promoting A-TIG provide certain reference application in industrial production.
Key words:  activating flux tungsten inert gas welding    welding penetration    activator    arc shrinkage    Marangoni
                    发布日期:  2021-12-09
ZTFLH:  TG444  
通讯作者:  2848318965@qq.com   
作者简介:  刘自刚,2013年6月毕业于兰州理工大学,获得工学硕士学位,高级工程师,现为诺力智能装备股份有限公司焊接工程师,主要从事新型高效焊接方法及装置,自动化焊接设备等方面的研发工作,2019年入选浙江省百千万高技能领军人才第三层次人才培养项目,现已申请专利29项,发表论文9篇。
周晓静,2008年6月毕业于湖州师范学院,工学学士学历,机械工程师,现为诺力智能装备股份有限公司科技管理部经理,主要从事高端仓储物流装备及物流系统集成领域的科技管理与研发协同工作,现已获得专利授权25项,参与制定国家标准4项,发表论文4篇。
引用本文:    
刘自刚, 周晓静, 朱婷婷, 陈亮, 陈飞, 许强. A-TIG焊接方法研究现状及展望[J]. 材料导报, 2021, 35(z2): 353-357.
LIU Zigang, ZHOU Xiaojing, ZHU Tingting, CHEN Liang, CHEN Fei, XU Qaing. Research Status and Prospect of A-TIG Welding Method. Materials Reports, 2021, 35(z2): 353-357.
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http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2021/V35/Iz2/353
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