机械制造与自动化2026，Vol.55Issue(4)：1-10,10.DOI:10.19344/j.cnki.issn1671-5276.2026.04.001
管道全位置焊接方法和缺陷控制研究综述
Overview of Research on All-Position Welding Methods and Defect Control for Pipelines
摘要
Abstract
With growing requirements in energy transmission safety,all-position pipeline welding—capable of accommodating various welding postures and stably controlling the molten pool—has become crucial for ensuring weld quality.During all-position welding,the changing welding postures and the significant influence of gravity on the molten pool often cause typical defects,such as lack of root penetration,root concavity,and incomplete sidewall fusion.This paper summarizes the main pipeline welding methods,including Tungsten Inert Gas(TIG)welding,gas metal arc welding(GMAW),and high-energy beam welding.Major control methods from domestic and international research are reviewed:firstly,process methods based on optimization of current/voltage waveforms and heat source parameters,which significantly improve root penetration;secondly,passive and active control methods employing physical and electromagnetic support,which effectively suppress root concavity and burn-through;thirdly,rotating-arc and weaving-arc techniques based on arc motion control,which effectively eliminate incomplete-sidewall-fusion defects.Future prospects for improving the quality and efficiency of intelligent and automated pipeline welding are also discussed.关键词
管道全位置焊接/焊接缺陷/缺陷抑制/智能调控Key words
all-position pipeline welding/welding defects/defect control/intelligent regulation分类
矿业与冶金引用本文复制引用
蒋凡,刘元,张国凯,武晓刚,陈树君..管道全位置焊接方法和缺陷控制研究综述[J].机械制造与自动化,2026,55(4):1-10,10.基金项目
国家重点研发计划项目(2023YFB 3407701) （2023YFB 3407701）
