Study of dual pulse gas metal arc welding process characteristics on IS 2062 steel

Arunkumar, M.; Sampreeth, S.; Panicker, Sudhy S.

doi:10.1016/j.matpr.2022.08.092

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…Robotic MIG welded joints have a slightly greater micro hardness than traditional MIG welded joints. Khamari et al, (2023) [13] published a feasibility comparison between GMAW and shielded metal arc welding (SMAW) for IS 2062 plates of various thicknesses. In order to improve welding conditions, the work demonstrated a link between tensile strength, toughness, and micro hardness under three welding currents using IS 2062 steel plates.…”

Section: IImentioning

confidence: 99%

Latest Developments in MIG Welding - A Review

Nazir

2023

IJRASET

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By continually supplying a wire electrode and a shielding gas to protect the weld pool from air contamination, MIG welding has been used to combine two metals or alloys. In comparison to other traditional techniques of combining the alloys using straightforward arc welding processes, the delivery of inert shielding gas provides a number of advantages. Better tensile strength, finer grain hardness, high weld quality and appearance, microstructure improvement, and metallurgical characteristics over the parent metal are a few advantages of this welding process. Therefore, the main goal of this research is to analyse current developments in the MIG welding industry and shed light on those areas that have not yet reached their full potential. As a result, various MIG welding stories are gathered and examined in this study paper based on tests, parameters, and the types of materials used for welding. According to the majority of the publications cited, current was discovered to be the dominant parameter among them, however gas flow rate and angle of weld using modern techniques have not been employed up to that level. Some suggestions for the manufacturing industries are noted below based on the evaluation, which may prove helpful for industrial applications in the future.

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Section: IImentioning

confidence: 99%

Latest Developments in MIG Welding - A Review

Nazir

2023

IJRASET

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“…Aslam and Sahoo (2022) observed coarse grain structure in HAZ and grain structure with fine columnar nature at penetration and weld bead region. Arunkumar et al (2023) reported on dual-pulse GMAW of IS 2062 mild steel. Process of dual-pulse GMAW favoured evolution of fine acicular ferrite at the welded metal region and same was held responsible for improved toughness and hardness.…”

Section: Introductionmentioning

confidence: 99%

“…Aslam and Sahoo (2022) observed coarse grain structure in HAZ and grain structure with fine columnar nature at penetration and weld bead region. Arunkumar et al. (2023) reported on dual-pulse GMAW of IS 2062 mild steel.…”

Section: Introductionmentioning

confidence: 99%

The influence of CMT-MAG and MAG welding-processes on microstructure and mechanical behaviour of C-Mn E410 structural-steels

Khajuria,

Misra,

Shiva

2024

IJSI

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PurposeAn experimental investigation for developing structure-property correlations of hot-rolled E410 steels with different carbon contents, i.e. 0.04wt.%C and 0.17wt.%C metal active gas (MAG) and cold metal transfer (CMT)-MAG weldments was undertaken.Design/methodology/approachMechanical properties and microstructure of MAG and CMT-MAG weldments of two E410 steels with varying content of carbon were compared using standardized mechanical testing procedures, and conventional microscopy.Findings0.04wt.%C steel had strained ferritic and cementite sub-structures in blocky shape and large dislocation density, while 0.17wt.%C steel consisted of pearlite and polygonal ductile ferrite. This effected yield strength (YS), and microhardness being larger in 0.04wt.%C steel, %elongation being larger in 0.17wt.%C steel. Weldments of both E410 steels obtained with CMT-MAG performed better than MAG in terms of YS, ultimate tensile strength (UTS), %elongation, and toughness. It was due to low heat input of CMT-MAG that resulted in refinement of weld metal, and subzones of heat affected zone (HAZ).Originality/valueA substantial improvement in YS (∼9%), %elongation (∼38%), and room temperature impact toughness (∼29%) of 0.04wt.%C E410 steel is achieved with CMT-MAG over MAG welding. Almost ∼10, ∼12.5, and ∼16% increment in YS, %elongation, and toughness of 0.17wt.%C E410 steel is observed with CMT-MAG. Relatively low heat input of CMT-MAG leads to development of fine Widmanstätten and acicular ferrite in weld metal and microstructural refinement in HAZ subzones with nearly similar characteristics of base metal.

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