Improvement of Tungsten Inert Gas (TIG) Welding Penetration Using the Effect of Electromagnetic Field

Baskoro, Ario Sunar; Tuparjono,; Erwanto,; Frisman, S.; Yogi, Adrian; Winarto, Winarto

doi:10.4028/www.scientific.net/amm.493.558

Cited by 8 publications

(10 citation statements)

References 1 publication

(1 reference statement)

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“…Ketika medan magnet aksial diterapkan untuk pengelasan busur, bentuk busur berubah dan menghasilkan bentuk bel berongga [14][15][16][17]. Baskoro dkk [18] telah mempelajari efek medan magnet luar untuk pengelasan busur pada pengelasan TIG autogenous. Diketahui bahwa medan magnet dinamis dihasilkan oleh solenoid system yang terletak sedemikian rupa dapat menghasilkan penetrasi pengelasan yang lebih dalam daripada proses pengelasan konvensional.…”

Section: Pendahuluanunclassified

Peningkatan Kedalaman Penetrasi Las Stainless Steel 304 dengan Medan Magnet Eksternal pada Pengelasan Autogenous Tungsten Inert Gas Welding

Haikal¹,

Chamim²,

Andriyansyah³

et al. 2021

JRM

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In this study, research on the use of the External Magnetic Field method – Tungsten Inert Gas was done to determine the effect of welding arc compression on the quality of AISI 304 thin plate weld. The welding process was performed using autogenous welds. In this study, an external magnetic field was generated by placing a magnetic solenoid around the TIG welding torch. Enabling this electromagnetic field is done dynamically using a microcontroller. Welding parameters used are welding current 100; 105; 110 A and welding speed 1.6; 1.8; 2.05 mm/s. The results of this study showed that EMF-TIG welding can produce a more uniform bead width along the weld line with a standard deviation of 0.08 compared with conventional TIG welding of 0.12. Increased welding speed of 2.05 mm/s causes no effect on the addition of an external magnetic field to the width of the weld bead. The current parameters are 105 A with a speed of 1.6; 1.8; 2.05 mm/s resulted in compression of the top bead width by 0.87; 0.61; 0.1 mm. The welding parameters with a current of 105 A and welding speed of 1.6 mm/s have a larger upper bead compression effect of 0.84 mm compared to 110 A currents of 0.38 mm. Moreover, the D/W ratio obtained under an external magnetic field was higher than without magnetic.

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Section: Pendahuluanunclassified

Peningkatan Kedalaman Penetrasi Las Stainless Steel 304 dengan Medan Magnet Eksternal pada Pengelasan Autogenous Tungsten Inert Gas Welding

Haikal¹,

Chamim²,

Andriyansyah³

et al. 2021

JRM

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“…Otherwise, the weld bead width is more uniform when using the current 110 A. This occurred because the use of low current is very susceptible to the occurrence of arc welding deflection [13].…”

Section: Automotive Experiences 31mentioning

confidence: 99%

“…This is because the magnitude of the welding current greatly influences the welding arc's stiffness. For instance, it can be increased by raising the welding current, reducing the EMF's impact on the welding arc [13].…”

Section: Automotive Experiences 32mentioning

confidence: 99%

“…Shoichi et al [12] examined the effect of EMF on TIG welding with filler for 2 welding positions of 1 G and 4 G. The results showed that the use of an external magnetic field with a certain position leads to a force in the direction of gravity or made against it (antigravity) to reduce the impact of welding defects, such as undercut. Baskoro et al [13] examined TIG welding using a dynamic magnetic field. The results showed that the magnetic field generated by the solenoid dynamically leads to a deeper weld penetration.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Magnetic Field Induce Arc in Autogenous TIG Welding of 304 Stainless Steel Butt Joint

Haikal

Chamim

Andriyansyah

et al. 2021

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This paper reports the use of External Magnetic Field-Tungsten Inert Gas (EMF-TIG) method in butt joint applications to determine the effect of welding arc compression on the quality of butt joint of SS 304 thin plate was reported. The welding process was performed without using filler or autogenous welds. The external magnetic field was generated by placing a magnetic solenoid around the TIG welding torch. The results of this study showed that EMF-TIG welding can produce a more uniform bead width along the weld line compare with conventional TIG. Moreover, the D/W ratio obtained under external magnetic field was higher than without magnetic. However, the tensile strength of butt joint decreased with EMF-TIG because there is constriction in arc welding which produces shrinkage weld pool volume. In addition, high welding speeds result in a decrease in the tensile strength of both conventional TIG and EMF-TIG welds.

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“…The shape of the electric arc can be affected by electromagnetic forces; the electromagnetic field generated by solenoids causes the electric arc to deflect and influences on increased penetration, when compared to not using the electromagnetic field [2].…”

Section: Introductionmentioning

confidence: 99%

Device Design for Electric Arc Electromagnetic Constriction

Antonello

Bracarense

2020

Soldag. insp.

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The difference of potential between two electrodes results in electric current breaking the dielectric barrier of the gas in this space causing a plasma discharge called electric arc. As a result, there is luminosity and an increase in temperature. Electric arc is used for welding and usually one of the electrodes is cylindrical with small diameter and the other with large area. Because of this configuration, the side section of the electric arc has a bell shape and forms a circular impression in contact with the work piece (the weld pool). With the use of electromagnetic forces, it is possible to change this circular impression, completely changing the behavior and consequently the geometry of the weld pool. This article presents the development and construction of a device for the electromagnetic constriction of the electric arc, capable of changing the cross section of the impression from circular to elliptical. The steps performed in the article were the simulation of the electromagnetic fields generated to change the electric arc shape, the development of the arc constriction device and the application of this electromagnetic constriction in beads on plate. The results show that the electromagnetic forces change the transverse profile of the arc from circular to elliptical, enabling the increase in specific power and a more precise orientation of the electric arc. Also, changing the orientation of the ellipse results in different penetration and width of the bead.

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Improvement of Tungsten Inert Gas (TIG) Welding Penetration Using the Effect of Electromagnetic Field

Cited by 8 publications

References 1 publication

Peningkatan Kedalaman Penetrasi Las Stainless Steel 304 dengan Medan Magnet Eksternal pada Pengelasan Autogenous Tungsten Inert Gas Welding

Peningkatan Kedalaman Penetrasi Las Stainless Steel 304 dengan Medan Magnet Eksternal pada Pengelasan Autogenous Tungsten Inert Gas Welding

Effect of Magnetic Field Induce Arc in Autogenous TIG Welding of 304 Stainless Steel Butt Joint

Device Design for Electric Arc Electromagnetic Constriction

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