Numerical Modeling of Heat-Affected Zone in the GMAW Process

Ghazvinloo, H. R.; Honarbakhsh-Raouf, A.

doi:10.1007/s11003-021-00498-2

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…Knowing that at lower WFS more passes were applied. The experiment setup as seen in Table 3 follows the Taguchi design's orthogonal array of three parameters (2 3 ) with two levels at each, resulting in a total of four experiments (L4). However, Minitab 18 ® couldn't estimate the experiment's coefficient with such a design.…”

Section: Methodsmentioning

confidence: 99%

“…Gas metal arc welding (GMAW) is a versatile welding technique that is favored in fabrication because of its high productivity and mechanization [1,2]. It is highly recommended for joining steel base metals due to its low operating cost, ease of use, and good adaptability [3,4]. GMAW is increasingly utilized in industry due to its application to all positions.…”

Section: Introductionmentioning

confidence: 99%

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Study the Influence of Welding Parameters by Taguchi’s Design on the Mechanical Properties of Welded Mild Steel (S235jr)

Elfallah

2023

Jurnal Teknologi

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Gas metal arc welding is a leading process in fusion welding with increased productivity and good quality. The welding parameters are crucial in determining welding quality, cost, and productivity. In this study, mild steel with a 10-mm-thick sheet was welded by gas metal arc welding under predetermined parameters of welding voltage, wire feed speed, and groove shape. The analysis made by Taguchi’s design to investigate the effect of these parameters on tensile strength and Vickers micro-hardness of welding. The microstructure of the fusion zone and heat-affected zone is analyzed to monitor their change concerning the mechanical properties. The results showed that tensile strength decreased with decreased hardness. Also, the tensile strength and hardness were higher (a maximum of 305 MPa and 2170 HVN) at welding made at a lower voltage (20 volts), lower wire feed speed (5.9 m/min), and V-shaped base metal groove. The increased precipitation of perlite structure was shown during welding, which has lower tensile strength and hardness. Widmanstatten ferrite and coarser α-ferrite were presented for welding with a lower cooling time. Taguchi’s design showed that voltage at 20 volts has the highest effect on tensile strength, followed by wire feed speed at 5.9 m/min and V-shaped welding.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study the Influence of Welding Parameters by Taguchi’s Design on the Mechanical Properties of Welded Mild Steel (S235jr)

Elfallah

2023

Jurnal Teknologi

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Parametric Study and Investigations of Bead Geometries of GMAW-Based Wire–Arc Additive Manufacturing of 316L Stainless Steels

Chaudhari

Parmar

Vora

et al. 2022

Metals

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Appropriate selection of wire–arc additive manufacturing (WAAM) variables imparts bead geometries with characteristics of multi-layer structures. Thus, the present study aimed to optimize the gas metal arc welding (GMAW)-based WAAM variables of travel speed (TS), wire feed speed (WFS), and voltage (V) for the bead geometries of bead width (BW) and bead height (BH) on an SS 316L substrate. Single-layer depositions were made through a metallic wire of SS 316L by following an experimental matrix of the Box–Behnken design (BBD) technique. Multivariable regression equations were generated for design variables and responses, and ANOVA was used to investigate the feasibility of the obtained regression equations. WFS was the highest contributor affecting the BW, followed by V and TS, while WFS was again the highest contributor affecting the BH, followed by TS and V. Heat transfer search (HTS) optimization was used to attain optimal combinations. The single-objective optimization result showed a maximum bead height and minimum bead width of 6.72 mm and 3.72 mm, respectively. A multi-layer structure was then fabricated by considering an optimization case study, and it showed optimized parameters at a WFS of 5.50 m/min, TS of 141 mm/min, and voltage of 19 V with the bead height and bead width of 5.01 mm and 7.81 mm, respectively. The multi-layered structure obtained at the optimized parameter was found to be free from disbonding, and seamless fusion was detected between the obtained layers of the structure. The authors believe that the present study will be beneficial for industrial applications for the fabrication of multi-layer structures.

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Numerical Modeling of Heat-Affected Zone in the GMAW Process

Cited by 2 publications

References 11 publications

Study the Influence of Welding Parameters by Taguchi’s Design on the Mechanical Properties of Welded Mild Steel (S235jr)

Study the Influence of Welding Parameters by Taguchi’s Design on the Mechanical Properties of Welded Mild Steel (S235jr)

Parametric Study and Investigations of Bead Geometries of GMAW-Based Wire–Arc Additive Manufacturing of 316L Stainless Steels

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