Effect of different electrode angles as well as weld direction on the bead geometry of submerge arc welding process

Nath, Rahul Kanti; Maji, Pabitra; Sinha, Atosh Kumar; Karmakar, Ranit; Paul, Pritam

doi:10.1016/j.matpr.2021.08.019

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…In the same line of thought, Lima and Ferraresi [10] demonstrated in their study that the welding direction also has an effect on the change in deposition yield. Other authors such as Nath et al [11] also investigated the influence of the welding direction and the angle of the electrode in relation to the base material on the quality obtained and its deposition yields. In the same line of thought, Sproesser et al [15] and Chucheep et al [16] when studying the correlations between Welding Voltage (U), in different welding processes, they considered welding speed as a decisive factor to obtain better Rd.…”

Section: Introductionmentioning

confidence: 99%

Study of welding deposition performance in changing parameters (welding speed and direction) in hard coating application in sugarcane mills using the FCAW process with a focus on sustainable manufacturing

Murad,

Ferraresi

2024

Cad. Pedagógico

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Being one of the main sources of waste generation from welding processes, filler metal splashes are a source of waste generation that promotes environmental impacts due to their chemical compositions. Actions that converge towards reducing waste, in addition to mitigating environmental impacts, also represent a significant contribution to reducing costs inherent to welding processes. Actions aimed at reducing waste and costs contribute significantly to sustainable production. In this context, a study is proposed that analyzes welding spatter as a contaminating residue and loss of financial resources. Therefore, the objective of this study is to analyze the application of hard coating using the FCAW (Flux-Cored Are Welding) process on shafts in sugar and alcohol plants. The objective is to study the influence of the coating application speed parameter associated with the direction of rotation (welding direction) on the Deposition Yield. As proposed in this study, using welding speeds of 6, 10 and 13.6 m/min with alternating rotation directions (clockwise and counterclockwise), the Deposition Yield was calculated for the 6 situations. The results showed an improvement in performance when 6 m/min and clockwise were combined. This improvement results in savings of approximately R$6.7 million per year and would avoid the generation of 385 tons of hazardous materials in Brazil. These results contribute to more sustainable production.

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Section: Introductionmentioning

confidence: 99%

Study of welding deposition performance in changing parameters (welding speed and direction) in hard coating application in sugarcane mills using the FCAW process with a focus on sustainable manufacturing

Murad,

Ferraresi

2024

Cad. Pedagógico

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“…Among the welding process parameters, the role of the EAW is less reported. However, the EAW has caught the attention of researchers in the recent past and has been investigated from different perspectives, for instance, input parameters impacts on weld quality characteristics [12], an artificial intelligent system for quality level based prediction [13], the effect on the width of the HAZ [14], and the effect on the weld bead geometry [15][16][17][18]. However, the specific influence of the electrode work angle (EWA), key process parameter, on 'T' welded joints in terms of its effect on microstructure, HAZ extent, and micro-hardness has not been extensively documented.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and microstructural characterization of AISI SAE 4130 steel welded joints made by robotic gas metal arc welding process: influence of electrode work angle in 'T' welded joints

Wordofa,

Perumalla,

Sharma

2024

Mater. Res. Express

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Microstructural variations within welded metals, specifically in terms of phases and their corresponding volume fractions, play a crucial role in influencing weld strength and other mechanical properties. Welded joints in a ‘T’ configuration pose a unique challenge due to the dynamic heat distribution caused by changes in the electrode work angle (EWA) between perpendicularly aligned plates. This study focuses on characterizing the microstructure and micro-hardness of ‘T’ welded joints in a 6 mm thick plate of AISI SAE 4130, welded using the robotic gas metal arc welding process. The examination covers three distinct zones: the base material (BM), the fusion zone (FZ), and the heat-affected zone (HAZ). The extent of the HAZ is meticulously measured on both the vertical and horizontal plates within the weld zones. The x-ray diffraction (XRD) analysis results indicated that the average crystallite size of the base metal and fusion zone is 25.75 nm and 24.51 nm respectively. As per the scanning electron microscope (SEM) image observations, the higher wire feed rate yields to brittle fracture surface. The torch angles notably influence the dimensions of the HAZ on the vertical and horizontal plates of a ‘T’-Joint. Welding at higher EWA and contact-tip-work-distance, results in a larger HAZ on the vertical plate. Conversely, employing a flattened EWA and an increased contact-tip-work-distance leads to a greater extent of the HAZ on the horizontal plate. Furthermore, the micro-hardness of the fusion zone and heat-affected zone demonstrates an increase at higher settings of wire feed rate and travel speed. This phenomenon is attributed to the elevated heat inputs, which contribute to the formation of a finer microstructure within the weldment.

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“…AW is a kind of directional energy deposition technology, in which metal welding wire is used as raw material and melted by arc or plasma arc. Common argon arc welding technologies include gas metal arc welding (GMAW) [ 13 ], gas tungsten arc welding (GTAW) [ 14 ], plasma arc welding (PAW) [ 15 ], submerged arc welding (SAW) [ 16 ] and flux-cored arc welding (FCAM) [ 17 ]. Among many repair and remanufacture methods, GMAW is widely used for its simplicity and adaptability.…”

Section: Introductionmentioning

confidence: 99%

Research on morphology, porosity, mechanical properties of 7075 aluminum alloy repaired by arc welding and laser shock forging

Chen,

Zhang,

Chi

et al. 2023

Heliyon

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Effect of different electrode angles as well as weld direction on the bead geometry of submerge arc welding process

Cited by 5 publications

References 15 publications

Study of welding deposition performance in changing parameters (welding speed and direction) in hard coating application in sugarcane mills using the FCAW process with a focus on sustainable manufacturing

Study of welding deposition performance in changing parameters (welding speed and direction) in hard coating application in sugarcane mills using the FCAW process with a focus on sustainable manufacturing

Mechanical and microstructural characterization of AISI SAE 4130 steel welded joints made by robotic gas metal arc welding process: influence of electrode work angle in 'T' welded joints

Research on morphology, porosity, mechanical properties of 7075 aluminum alloy repaired by arc welding and laser shock forging

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