Investigation into the arc profiles and penetration ability of axial magnetic field-enhanced K-TIG welding by means of a specially designed sandwich

Cui, Yanxin; Kang, Youping; Shi, Yonghua; Chen, Jinrong; Wang, Zishun; Wang, Jinyi

doi:10.1016/j.jmapro.2021.05.025

Cited by 9 publications

(2 citation statements)

References 29 publications

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“…High quality, high efficiency, and low cost are important directions for the development of modern manufacturing industry. 1,2 Tungsten inert gas (TIG) welding is widely utilized in the welding production of thin-walled structural elements due to its advantages of stable welding process, high quality, and low cost. 3 The direct current electrode negative (DCEN) is generally applied in the TIG welding production of stainless steel pipes.…”

Section: Introductionmentioning

confidence: 99%

Evolution rules for cathode erosion and corresponding arc behaviour in tungsten inert gas welding

Qu,

Qin,

Wang

et al. 2024

Science and Technology of Welding and Joining

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Cathode erosion is a serious problem in long hours of Tungsten Inert Gas (TIG) welding. The evolution of electrode end shape and corresponding arc behaviour was studied at different welding currents and cathode parameters. The results illustrate that slow erosion, shedding, and expansion are three typical erosion modes. Slow erosion is an inevitable mode, causing the arc root width ( Ra) and arc diameter ( Rb) to slowly increase by 2.1% and 2.6%, respectively. With the increasing welding current or the decreasing cone angle and diameter, Ra and Rb are increased in shedding mode by 6.3% and 1.0%, respectively. Expansion appears when the electrode end has a truncated cone shape, causing gradual decrease of 5.7% and 2.3% in Ra and Rb, respectively.

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Section: Introductionmentioning

confidence: 99%

Evolution rules for cathode erosion and corresponding arc behaviour in tungsten inert gas welding

Qu,

Qin,

Wang

et al. 2024

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…At present, research on arcs mainly focuses on the fields of welding arcs, pantograph-catenary arcs, and switching arcs. In terms of welding arcs, scholars improve arc stability and thermal effect by improving electrode structure, ejecting inert gas, and external magnetic field, to improve arc welding speed and welding quality [14][15][16]. In the field of pantograph-catenary arc, scholars have explored the severe arc column drift and arc reignition phenomenon of the pantograph-catenary arc under low air pressure and strong airflow environment, which poses a great threat to the normal operation of insulators and contact wires.…”

Section: Introductionmentioning

confidence: 99%

Arc stability and ablation characteristics in O₂, N₂, and air environments

Dong,

Yang,

Luo

et al. 2024

Phys. Scr.

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Arcing is widely used in the processing and manufacturing of electrical materials. Arc duration and stability play a key role in the quality and efficiency of arc welding and cutting. Additionally, the generation of the arc will cause faults, failures, and even fire, and explosion in the electrical contact system. Arc is also a critical problem that threatens the safe and stable work of electrical contact systems. Therefore, a platform for arc experiment and test analysis in a multi-atmosphere environment is built in this paper. The influence of the gas environments and gas pressures on arc breaking distance and ablation characteristics is explored. The experimental results show that the oxygen environment is conducive to rapid arc extinguishing. This phenomenon is because oxygen has strong electronegativity, which makes it easy to adsorb charged particles and leads to a density decrease of charged particles. The variation of arc breaking distance and ablation characteristics under different gas environments and gas pressures is found. The influence mechanism of gas environments and gas pressures on arc breaking distance and ablation characteristics are explored. The correlation mechanism between arc breaking distance and arc ablation characteristics is revealed. The research results provide theoretical support for improving the quality of electrical material processing and manufacturing and the service life of electric contact systems. Keywords: Arc breaking distance, arc stability, arc ablation, different arcing environments

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Effects of Magnetic Fields in Arc Welding, Laser Welding, and Resistance Spot Welding: A Review

Shi

Cui

et al. 2022

Adv Eng Mater

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The application of magnetic field in welding process has been proved to be effective in improving the mechanical properties of welded joints and is regarded as a practicable auxiliary welding method. Although the theoretical research on magnetic field‐assisted welding is quite abundant, there is still a long way to go before a stable industrial application is achieved. Therefore, to clarify magnetic field and compare its roles in various welding techniques, this work carefully examines the use of magnetic field in recent welding techniques such as laser welding, laser‐melt inert gas hybrid welding, gas metal arc welding, tungsten inert gas welding, and resistance spot welding. Based on previous experiments and simulation research results, the effects of the Lorentz force on the arc, molten pool, and dendrite solidification during welding as well as the microstructure and mechanical properties of welded joints are discussed. The purpose of this work is to give a superficial introduction to the magnetic field‐assisted welding method in recent years, hoping to improve the welding practitioners’ understanding of the magnetic‐assisted welding method and provide a reference for researchers who use different welding methods.

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Investigation into the arc profiles and penetration ability of axial magnetic field-enhanced K-TIG welding by means of a specially designed sandwich

Cited by 9 publications

References 29 publications

Evolution rules for cathode erosion and corresponding arc behaviour in tungsten inert gas welding

Evolution rules for cathode erosion and corresponding arc behaviour in tungsten inert gas welding

Arc stability and ablation characteristics in O₂, N₂, and air environments

Effects of Magnetic Fields in Arc Welding, Laser Welding, and Resistance Spot Welding: A Review

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Investigation into the arc profiles and penetration ability of axial magnetic field-enhanced K-TIG welding by means of a specially designed sandwich

Cited by 9 publications

References 29 publications

Evolution rules for cathode erosion and corresponding arc behaviour in tungsten inert gas welding

Evolution rules for cathode erosion and corresponding arc behaviour in tungsten inert gas welding

Arc stability and ablation characteristics in O2, N2, and air environments

Effects of Magnetic Fields in Arc Welding, Laser Welding, and Resistance Spot Welding: A Review

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Arc stability and ablation characteristics in O₂, N₂, and air environments