Thin sheet welding of Al 6082 alloy by AC pulse-GMA and AC wave pulse-GMA welding

Kumar, Rakesh; Dilthey, Ulrich; Dwivedi, Dheerendra Kumar; Ghosh, P. K.

doi:10.1016/j.matdes.2008.04.073

Cited by 64 publications

(18 citation statements)

References 5 publications

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“…It was seen that the macro-structure had changed, depending on the working times. The macro-structures obtained in this study are similar to those of Rakesh [3]. As the duration of the welding had increased, the expansion of the weld root was observed, which spread to the sides, up to a certain time.…”

Section: Macro-structure Appearancessupporting

confidence: 80%

“…Aluminium and its alloys are vital to the aerospace industry and are important in transportation and structures, such as building facades and window frames. Aluminium alloys are classified in different series, depending on their composition ratios [2,[3][4][5]. The aluminium series 6082-T6 is preferred due to its good weldability, high corrosion resistance and good formability [3].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Tensile Properties of Aluminum 6082-T6 Alloys Joined by Cold Metal Transfer Method by Using Different Working Time

et al. 2017

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In this study, Aluminium 6082-T6 plates having 1.0 mm thickness were joined by magnesium-based (AlMg5) wire in cold metal transfer technique. The specimens were prepared in butt joint form. Argon was used as shielding gas and joining operations were done at gas flow speed of 13 l/min. The joining operations were carried out during four different working times of 25, 30, 35, 40 and 45 seconds. Tensile properties of joints were determined and macro-structures of joints were investigated in order to evaluate the joinability of Aluminium 6082-T6 alloy by cold metal transfer technique. Finally, the micro-hardness values of specimens were measured.

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Section: Macro-structure Appearancessupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Investigation of Tensile Properties of Aluminum 6082-T6 Alloys Joined by Cold Metal Transfer Method by Using Different Working Time

et al. 2017

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“…They found that, with the increase in EN ratio, the drop sizes and wire melting rate increased, whereas the heat supplied to the BM decreased. Kumar et al [8] investigated the microstructure and mechanical properties of butt and overlap welding joints of 1 mm thin 6082 aluminum sheets. They reported that the depth of penetration can be controlled by adjusting the EN ratio.…”

Section: Introductionmentioning

confidence: 99%

The Effect of EN Ratio and Current on Microstructural and Mechanical Properties of Weld Joined by AC-GMAW on Square Groove Butt Joints

Ikram¹,

Chung²

2017

Applied Sciences

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Abstract:In the present work, the effect of welding current and electrode negative (EN) ratio on microstructure and mechanical properties of square groove butt joint produced by alternating current gas metal arc welding (AC-GMAW) process has been investigated. The experiments were conducted using different combination of welding current ranging from 150 A to 250 A with three distinct EN ratios i.e., 0%, 30% and 50% on 5 mm thick steel plates at a constant joint gap of 1 mm and welding speed of 10 mm/s. The effect of current and EN ratio on welding soundness was evaluated through optical microscopy, tensile tests and micro-hardness mapping. The results revealed that, at higher values of currents, an increase in EN ratio resulted an increase in penetration depth. It was found that at a current of 250 A and a 50% EN ratio, the deep penetration was obtained.Tensile test results showed that the tensile strength properties improved with increasing current. Furthermore, the micro-hardness distribution was not strikingly affected by changing the EN ratio.

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“…The metal droplet transfer (MDT) and its stability are closely associated with the stability of welding process and weld quality. The welding parameters affect the MDT mode as well as the weld quality in P-GMAW [1,2]. Nakamura et al [3] used a high speed video camera system to study the stability of GMAW welding process.…”

Section: Introductionmentioning

confidence: 99%

Study on the thermo-effect of P-GMAW characterized by structure-borne acoustic emission signals detected in welding on aluminum alloy

Luo

Zhu

et al. 2016

Measurement

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Thin sheet welding of Al 6082 alloy by AC pulse-GMA and AC wave pulse-GMA welding

Cited by 64 publications

References 5 publications

Investigation of Tensile Properties of Aluminum 6082-T6 Alloys Joined by Cold Metal Transfer Method by Using Different Working Time

Investigation of Tensile Properties of Aluminum 6082-T6 Alloys Joined by Cold Metal Transfer Method by Using Different Working Time

The Effect of EN Ratio and Current on Microstructural and Mechanical Properties of Weld Joined by AC-GMAW on Square Groove Butt Joints

Study on the thermo-effect of P-GMAW characterized by structure-borne acoustic emission signals detected in welding on aluminum alloy

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