Effect of SMAW process parameters on similar and dissimilar metal welds: An overview

Baghel, Pushp Kumar

doi:10.1016/j.heliyon.2022.e12161

Cited by 13 publications

(3 citation statements)

References 44 publications

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“…SMAW welding is the most flexible because it can be applied to most ferrous and nonferrous metals with various thicknesses, shapes, and positions and is relatively economical [20].…”

Section: Shielded Metal Arc Weldingmentioning

confidence: 99%

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2023

Jurnal Polimesin

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ASME SA 106 Grade B pipe material or more familiarly known as API 5L Grade B Pipe in the oil and gas industry is widely used in distribution pipes with quite high pressure and temperature, especially in gas and steam distribution lines. During operation, damage and leakage often occur due to earthquakes and other external loads. The strength of the resulting welded joint and the selection of the appropriate welding method are strategic issues to be studied and researched. This study aims to determine the hardness and strength of the welded joint of 6 inch schedule pipe 80 API 5L Grade B using a combination Gas Tungsten Arc Welding (GTAW) and Shielded Metal Arc Welding (SMAW) welding process and setting welding parameters with different current variations for 6 layers design. The electrode used is ER 70S-6 for root pass welding using the GTAW process, and the SMAW process uses the E 7016 electrode for hot pass and cover pass welding, the groove used is the singgle V groove with an angle of 60 degrees. The tests carried out are non-destructive testing, tensile testing and hardness tests. The results of the study showed an increase in the value of tensile strength reaching 499 Mpa, yield strength reaching 364 MPa and elongation is became 13%. The hardness test show that the highest hardness is in the weld metal area with an average hardness reaching 68.10 HRC, then in the Heat Affected Zone (HAZ) area with an average value of 63.55 HRC and the average hardness value in the parent material or based metal area reaches 61.00 HRC. These results indicate the combination welding method between GTAW and SMAW process are suitable to be applied for joinning API 5L or ASME SA 106 Grade B pipes material.

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“…SMAW welding is the most flexible because it can be applied to most ferrous and nonferrous metals with various thicknesses, shapes, and positions and is relatively economical [20].…”

Section: Shielded Metal Arc Weldingmentioning

confidence: 99%

“…The quality of SMAW welding results is highly dependent on the correct and appropriate setting of welding parameters, such as [20] [16]. API 5L standard specification covers seamless and welded line pipe [24].…”

Section: Shielded Metal Arc Weldingmentioning

confidence: 99%

Untitled

2023

Jurnal Polimesin

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“…On the other hand, SAF 2507 has good performance in all aspects, but it is more expensive to completely replace 316L to make pipes, so replacing 316L with SAF 2507 in some key parts can reduce the cost. Because two different base metals have different chemical composition, structure and physical properties, it is difficult to weld dissimilar metals [12]. The groove angle has a great influence on the weld quality in the process of dissimilar metal welding.…”

Section: Introductionmentioning

confidence: 99%

Effect of groove angle on residual stress and deformation of super duplex stainless steel SAF 2507 and austenitic stainless steel 316L dissimilar plasma arc welding

Hong,

Huang,

et al. 2024

Materialwissenschaft Werkst

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Plasma arc welding of super duplex stainless steel SAF 2507 and austenitic stainless steel 316L was carried out by using V‐grooves with different groove angles. In order to predict the temperature distribution during the welding process, the Simufact Welding finite element software was used to establish an equivalent heat source to simulate the plasma arc welding process. The equivalent heat source consists of Goldak heat source and conical heat source. In mechanical simulation, the elastoplastic behavior with isotropic hardening is realized. The numerical results are in good agreement with the experimental results. The results show that with the increase of groove angle, the equivalent stress, transverse residual stress, longitudinal residual stress and overall deformation of SAF 2507/316L dissimilar steel welded joint decrease gradually, and the overall deformation of the joint increases gradually. The groove angle has little influence on the equivalent stress, transverse residual stress and overall deformation, but has great influence on the longitudinal residual stress and Z‐direction deformation. Comprehensive analysis of the stress and deformation results under four groove angles shows that the groove angle is too large or too small, which has a great influence on the stress and deformation of the weldment. The groove angle of 60° is better for SAF 2507/316L dissimilar steel welding.

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