Improving weld penetration by employing of magnetic poles’ configurations to an autogenous tungsten inert gas (TIG) welding

Baskoro, Ario Sunar; Fauzian, Angga; Basalamah, Haikal; Kiswanto, Gandjar; Winarto, Winarto

doi:10.1007/s00170-018-2552-2

Cited by 24 publications

(14 citation statements)

References 13 publications

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“…The comparison made with Nomura works [26,27] showed that the N-N-S-S configuration has a different result in changing the arc blow effect. The arc blow results were consistent with the work showed by Baskoro et al [15] with the same type configuration N-N-S-S. Their literature proposed many different configurations in a vertical position, namely perpendicular (PP-NNSS) and horizontal position, namely parallel (PR-NNSS). Figure 8 shows the front camera view of the side deflection.…”

Section: Arc Blow Image Comparisonsupporting

confidence: 91%

“…However, research related to EMF in gas metal arc welding (GMAW) or GTAW has been introduced for a long time since 1962 by Brown et al [5]. The technology used EMF with an induction coil or magnetic field from a permanent magnet is used for some reasons, such as associated with modifying the microstructure [6][7][8][9][10], improving corrosion resistance and pitting resistance [8,[11][12][13], enhanced weld penetration and the characteristics [14,15], the stability of the arc plasma [16][17][18], controlling the droplet transfer [8,19], improving the joint strength [9], and fatigue damage [10]. Compared to the traditional or conventional TIG welding, TIG assisted with an external permanent magnet can improve the depth-to-width ratio and reduce the corresponding heat input.…”

Section: Introductionmentioning

confidence: 99%

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Study of Cross-Combination and Square-Combination Configuration Magnetic Field on Tungsten Inert Gas Welding

Baskoro¹,

Amat²,

Arisoni³

2021

IJAME

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In this study, cross-combination and square-combination configuration of the permanent external magnet were used in tungsten inert gas welding process. The external magnetic field effect to the arc plasma was observed using two cameras from the front view and side view. The depth of penetration and weld profile was investigated after welding. In this study, two types of magnets were employed; a 3 mm magnet with intensity ranging from 270-280 mT and a 5 mm magnet with 400-415 mT. Each configuration has three sub-configurations: forward, backward, and side, so there were 12 parameters in this study. The result shows that a cross-combination 5 mm magnet can increase weld penetration in any position, forward, backward or side deflection, and improve the depth-to-width ratio, however using 3 mm magnet did not influence the penetration significantly. Cross-combination has more stiffness and stability of the arc than square-combination. Most configurations have the same size weld bead width. Square combinations had fluctuated result, stiffness and stability of the arc was poor. This investigation aims to enlarge our understanding of the magnetic field effect on the arc plasma and the weld profile. In future, the arc blow effect from the external magnetic field can be controlled and regulated to improve TIG welding performance.

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Section: Arc Blow Image Comparisonsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Study of Cross-Combination and Square-Combination Configuration Magnetic Field on Tungsten Inert Gas Welding

Baskoro¹,

Amat²,

Arisoni³

2021

IJAME

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“…Aluminum alloys are well known and one of the most important materials in the world. It is found in wide range applications such as aerospace industries, railway vehicles, high-speed ships, most window panels, light structures, heavy structures, offshores structures, and bridges [1][2][3][4] . Aluminum alloys also have good corrosion resistance and strength to weight ratio [5][6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

Investigation of Temperature History, Porosity and Fracture Mode on AA1100 Using the Controlled Intermittent Wire Feeder Method

Baskoro¹,

Amat²,

Putra³

et al. 2020

Evergreen

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In this study, the effect of variation of intermittent wire feeding method on thermal histories during the welding process, the physical appearance, mechanical properties, and fracture mode was investigated. The configuration parameter of wire feeding was determined by the properties of the so-called length ratio (RL). It was influenced by welding speed, wire feeding speed, feeding time, and delaying time. Bigger value of length ratio tends to have a smaller bead width with a higher cap. Also, a larger ratio tends to have bigger tensile strength and the fracture location close to the weld bead.

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“…When an extra magnetic field is added to the welding process, the current flow path, temperature, velocity and other properties of the welding arc and molten pool will be changed [ 19 , 20 ]. Some research results have shown that the temperature field of the welding arc is nonaxisymmetrical under a longitudinal magnetic field [ 21 ], and the current density on the workpiece surface is no longer Gaussian distribution if an axial magnetic field is used in the arc column [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Heating Characteristics of Magnetic Oscillation Arc and the Fluid Flow in Molten Pool in Narrow Gap Gas Tungsten Arc Welding

Jian

Yang

et al. 2020

Materials

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Magnetic oscillation arc (MOA) technology was developed to avoid insufficient fusion defects appearing at the sidewalls in narrow gap gas tungsten arc welding (NG-GTAW). In this work, a unified model was developed to simulate the process of MOA assisted NG-GTAW. The model included the MOA, welding pool, workpiece and the coupling interaction between them. The heating characteristic of the MOA and the flow of liquid metal were simulated, and the mechanism of forming a uniform welding bead under MOA was investigated. It was found that if the magnetic flux density increased to 9 mT, the MOA could point to the sidewall directly; the maximum heat flux at the bottom declined by almost half and at the side, it increased by more than ten times. Additionally, the heat flux was no longer concentrated but dispersed along the narrow groove face. Under the effect of MOA, there were mainly two flow vortexes in the molten pool, which could further increase the heat distribution between the bottom, sidewall and corner, and was beneficial for the formation of a good-shape weld. The model was validated by experimental data.

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Improving weld penetration by employing of magnetic poles’ configurations to an autogenous tungsten inert gas (TIG) welding

Cited by 24 publications

References 13 publications

Study of Cross-Combination and Square-Combination Configuration Magnetic Field on Tungsten Inert Gas Welding

Study of Cross-Combination and Square-Combination Configuration Magnetic Field on Tungsten Inert Gas Welding

Investigation of Temperature History, Porosity and Fracture Mode on AA1100 Using the Controlled Intermittent Wire Feeder Method

Numerical Analysis of the Heating Characteristics of Magnetic Oscillation Arc and the Fluid Flow in Molten Pool in Narrow Gap Gas Tungsten Arc Welding

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