Experimental investigation of effects of welding current and electrode angle on tensile strength of shielded metal arc welded low carbon steel plates

Pathak, Deepak; Singh, Rudra Pratap; Gaur, Sumit; Balu, Vincent

doi:10.1016/j.matpr.2020.01.146

Cited by 10 publications

(5 citation statements)

References 3 publications

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“…4). This is due to the strength of the weld metal which is lower than that of nodular cast iron [31].…”

Section: Resultsmentioning

confidence: 96%

Effect of Shielded Metal Arc Welding on Microstructure, Hardness, and Tensile Strength of Nodular Cast Iron

Darmawan,

Anggono,

Yulianto

et al. 2024

Advances in Science and Technology

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Welding plays an important role in the component joining process. This study aimed to determine the effect of shielded metal arc welding on the microstructure, hardness and tensile strength of nodular cast iron. Shielded metal arc welding was performed using AWS A5.15 Eni-CL electrodes. Scanning Electron Microscope is used for metallographic observation. Hardness testing was carried out on base metal, heat-affected zone, and weld metal. This hardness test uses the Vickers technique. Tensile testing was carried out to determine the effect of welding on tensile strength. The results of the metallographic investigation showed the disappearance of the ferrite phase and the appearance of the ledeburite phase in the heat-affected zone and weld metal. The area with the highest hardness occurs in the heat-affected zone while the lowest hardness occurs in the weld metal. There is a decrease in the tensile strength of nodular cast iron due to the welding process.

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“…4). This is due to the strength of the weld metal which is lower than that of nodular cast iron [31].…”

Section: Resultsmentioning

confidence: 96%

Effect of Shielded Metal Arc Welding on Microstructure, Hardness, and Tensile Strength of Nodular Cast Iron

Darmawan,

Anggono,

Yulianto

et al. 2024

Advances in Science and Technology

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“…In the present study, three welding processes, including polarity, electrodes angles and work piece, were taken into account to measure the tensile strength of the welded joint. Prediction of tensile strength is important to address the difficulties related with welded joints under various welding conditions [5]. The magnitude of the change in plastic deformation in room temperature media has an elongation value (e) of 1.2%, at which point the test material undergoes structural changes.…”

Section: Resultsmentioning

confidence: 99%

“…In welding, dissimilar metals are applied to join economically though at a greater rate compared to other manufacturing processes such as enthralling and casting. [5].…”

Section: Introductionmentioning

confidence: 99%

Analysis Of Mechanical Properties SMAW (Shielded Metal Arc Welding) Welding Joints Of Portable Electric Hydraulic Jack Frame

Wisnujati

Andryansyah²

2021

Intek

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Welding is a very important part of the development and growth of the industry because it has a role in engineering, reparation, and construction. Shielded Metal Arc Welding (SMAW) or the conventional arc welding process is particularly dominant in structural joints, pressure vessels and in maintenance and repair work. In welding, different metals are joined economically and at a much faster rate as compared with other fabrication processes like riveting and casting. The purpose of this research is to find out the cooling media cooler against SMAW smelter tensile strength by using the E6013 electrode. This study uses low carbon steel material that has levels Fe = 98,3%; C = 0,30%, Si = 0,23%. The material is given 75A welding current with cooling variation on the connection result using oil, water, and room temperature. The highest tensile stress value obtained in the oil cooling treatment was 844,76 N/mm2, the highest strain value was obtained on the raw materials of 16%, the highest elasticity value was obtained in the oil cooling treatment of 703.96 N/mm2. According to the research results can be concluded that the variations of cooling media greatly affect the strength of the welding connection.

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“…In this experiment, the constant parameters are welding current of 110 amp and 100 s of time of vibrations (Pathak et al, 2020). The varying parameters are the voltage of the vibro-motor connected to the table and DC motor voltage which is connected to the electrode.…”

Section: Input Vibratory Parametersmentioning

confidence: 99%

The effect of vibratory conditioning on tensile strength and microstructure of 1018 mild steel

Bade

Rao

Rao³

2020

WJE

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Purpose The purpose of this paper is to investigate the prominence of mechanical excitations at the time of welding. In the past years, the process of welding technology has expanded its influence in manufacturing. The crucial drawback of conventional welding is prompted by internal stresses and distortions, which is the focal reason for weld defects. These weld defects can be diminished by the process called post-weld heat treatment (PWHT), which consumes more working hours and needs skilled workers. To replace these PWHT processes, mechanical vibrations are introduced during the process of welding to diminish these weld defects. Design/methodology/approach In the current research, the mechanical vibrations are transferred to weld-pool through vibro-motor and DC motor connected to the electrode. As per standards, the tensile test specimens were prepared for welding with different voltages of vibro-motor and DC motor respectively. The weld joints were tested for tensile strength and analyzed the microstructure at the fusion zone. Findings Melt-ability at fusion zone of 1018 mild steel was investigated by the single-stroke intense heat process of fusion welding. It is observed that the mechanical vibrations technique has a profound influence on the enhancement of the fusion zone characteristics and grain structure. The peak value of the tensile strength is observed at 100 s of vibration, 190 V of vibro-motor voltage and 18 V of electrode voltage. The tensile strength of the welded joints with vibrations is increased up to 22.64% when it is compared with conventional welding. The enhancement of the tensile strength of the weld bead was obtained because of the formation of fine grain structure. So, mechanical vibrations are identified as the most convenient method for improving the mild steel alloys weld quality. Originality/value A novel approach called mechanical vibrations during the process of welding is implemented for fusion zone refinement.

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Experimental investigation of effects of welding current and electrode angle on tensile strength of shielded metal arc welded low carbon steel plates

Cited by 10 publications

References 3 publications

Effect of Shielded Metal Arc Welding on Microstructure, Hardness, and Tensile Strength of Nodular Cast Iron

Effect of Shielded Metal Arc Welding on Microstructure, Hardness, and Tensile Strength of Nodular Cast Iron

Analysis Of Mechanical Properties SMAW (Shielded Metal Arc Welding) Welding Joints Of Portable Electric Hydraulic Jack Frame

The effect of vibratory conditioning on tensile strength and microstructure of 1018 mild steel

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