Effect of Plasma Arc Welding on Residual Stress and Distortion of Thin Titanium Sheet

Arunkumar, M.; Dhinakaran, V.; Sivashanmugam, N.; Petley, Vijay

doi:10.1590/1980-5373-mr-2019-0366

Cited by 6 publications

(4 citation statements)

References 21 publications

(21 reference statements)

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“…In laser‐welded samples, hysteresis losses are much lower than those of samples welded with tungsten inert gas because the residual stresses in the sheets are less affected. Additionally, the residual stress distribution range is wider for tungsten inert gas welded samples due to changes in the weld zone [28].…”

Section: Resultsmentioning

confidence: 99%

Influence of laser and tungsten inert gas arc welding on magnetic properties of AISI M‐43, and M‐47 grade cold‐rolled non‐oriented electrical steel

Dharmik

Lautre

2022

Materialwissenschaft Werkst

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The magnetic properties and core losses of cold-rolled non-oriented electrical steel are influenced by gas tungsten arc, and laser welding. Investigations are carried out on the toroidal core sample welded on six sides around the outer periphery for estimating the variation in magnetic properties by increasing magnetic flux density and grain size. The percentage increase of power loss density in gas tungsten arc for M-43 grade (M-43-TIG) and laser-welded core samples for M-43 grade (M-43-LB) were 24.7 % and 11.86 %, whereas 18.43 % (M-47-TIG), and 4.9 % (M-47-LB), respectively. A significant decrease in permeability of about 55.39 % and 53.57 % was experienced in M-43-TIG and M-43-LB, respectively. However, in M-47 grade, the decrease was more for M-47-TIG (52.58 %) than the M-47-LB (39.52 %) welded sample when tested at 1.5 T. All the parameters investigated are compared with sticking, non-welded core sample.Keywords: cold-rolled / non-oriented / electrical steel / magnetic properties / welding / laser Die magnetischen Eigenschaften und Kernverluste von kaltgewalztem, nicht kornorientiertem Elektroband werden durch Wolframinertgas-Lichtbogen-und Laserstrahlschweißen beeinflusst. An der sechsseitig am Außenumfang verschweißten Ringkernprobe wurden Untersuchungen zur Abschätzung der Variation der magnetischen Eigenschaften durch Erhöhung der magnetischen Flussdichte und Korngröße durchgeführt. Die prozentualen Erhöhungen der Leistungsverlustdichten im Wolframinertgas-Lichtbogenschweißen für die Sorte M-43 (M-43-TIG) und laserstrahlgeschweißte Kernproben für die Sorte M-43 (M-43-LB) betrugen 24,7 % und 11,86 % (M-43-TIG), dagegen 18,43 % bzw. 4,9 % (M-43-TIG). Eine signifikante Abnahme der Permeabilität von etwa 55,39 % und 53,57 % wurde bei M-43-TIG bzw. M-43-LB festgestellt. Bei der Güte M-47 war die Abnahme jedoch bei M-47-TIG (52,58 %) stärker als bei der M-47-LB (39,52 %) geschweißten Probe, wenn sie bei 1,5 T getestet wurde. Alle untersuchten Parameter werden mit einer geklebten, nicht geschweißten Kernprobe verglichen.

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Section: Resultsmentioning

confidence: 99%

Influence of laser and tungsten inert gas arc welding on magnetic properties of AISI M‐43, and M‐47 grade cold‐rolled non‐oriented electrical steel

Dharmik

Lautre

2022

Materialwissenschaft Werkst

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“…Despite being low-order elements, refining them in the region with the highest thermal gradient within the mesh yields favorable outcomes [14][15][16][17].…”

Section: Simulation Modelmentioning

confidence: 99%

Thermal-Structural Plasma Gouging Simulation for Welding Repair

Serrati,

Araújo,

Vilarinho

2023

Soldag. insp.

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Numerical simulations are commonly employed for comprehending and prognosticating welding procedures. However, repair often requires supplementary actions such as gouging for defect removal. Thermal cycles and nonuniform expansion and contraction of the base metal can engender internal and residual stresses in the gouged region. Residual stresses can wield influence over mechanical properties, thereby underscoring the necessity for their investigation. This study endeavors to establish a numerical method to simulate gouging while devising a rationale for thermal cutting processes. The model was validated by comparing computational and experimental results, which showed good agreement. Mechanical simulation unveiled residual stresses characterized by modest magnitude. This methodology can prevent mechanical failures in repaired components by providing valuable insights into the effects of the gouging process.

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“…However, when the welding parameters are kept constant properties of the material play an important role [10]. The clamps and fixture used during welding have a definite effect on the distortion, and thus an appropriate selection of the clamping conditions is an utmost necessity [12,13]. Initial gap and misalignment have a significant influence on welding distortion as discussed by Deng et al [14].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Mechanical Properties of Microplasma Welding of 0.5 mm SS304 Sheets

Ansari

Baruah

2023

Soldag. insp.

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The demand for light weight and small components has increased tremendously over the years. The present work describes the plasma micro welding of SS304 alloy. Plasma arc micro welding is carried out on thin sheet to characterize the effect of welding parameters. The proper ranges of welding current at constant welding speed for two different plasma gas flow rates are evaluated to obtain better quality of weld at butt joint configuration. Distortion is a major problem for welded structures especially for the thinner materials. Hence, the variation of process parameters viz. welding current and plasma gas flow rate are studied on weld-induced distortion. Distortion analysis both longitudinal shrinkage and transverse shrinkage are done for six different welding conditions. It is predicted that both longitudinal shrinkage and transverse shrinkage increases with increase in plasma gas flow rate and current. The tensile strength and microstructure are also determined at different gas flow rates and welding currents. This may be due to the application of more heat at higher values.

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Effect of Plasma Arc Welding on Residual Stress and Distortion of Thin Titanium Sheet

Cited by 6 publications

References 21 publications

Influence of laser and tungsten inert gas arc welding on magnetic properties of AISI M‐43, and M‐47 grade cold‐rolled non‐oriented electrical steel

Influence of laser and tungsten inert gas arc welding on magnetic properties of AISI M‐43, and M‐47 grade cold‐rolled non‐oriented electrical steel

Thermal-Structural Plasma Gouging Simulation for Welding Repair

Estimation of Mechanical Properties of Microplasma Welding of 0.5 mm SS304 Sheets

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