The effect of a hot-wire in the tandem GMAW process ascertained by developing a multiphysics simulation model

Kim, Jin-young; Van, Donghyun; Lee, Jae-Young; Yim, Jonghyun; Lee, Seung Hwan

doi:10.1007/s12206-020-1226-9

Cited by 4 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Liu et al [10] studied the influence of torch configuration on arc interaction behavior in DW-GMAW and discovered that torch configuration affects the arc interaction behavior, consequently affecting the droplet transfer mode. Kim et al [11,12] used an opposite polarity welding wire to control the droplet transfer process in tandem GMAW, demonstrating that the welding wire at the central position effectively reduces the electromagnetic effect caused by the tandem electrodes, thereby reducing arc interference and droplet deflection.…”

Section: Matsumoto and Sasabementioning

confidence: 99%

Influence of high-frequency pulse on droplet transfer process and weld formation in double-wire median pulsed GMAW of aluminum alloy

Wu,

Lin,

Yang

et al. 2024

Preprint

View full text Add to dashboard Cite

A double-wire median pulsed gas metal arc welding (GMAW) with a high-frequency pulse waveform was developed to study the influence of a high-frequency pulse on the droplet transfer process and weld formation in aluminum (Al) alloy. The droplet transfer process was recorded using a high-speed photography system. At the same time, the influence of a high-frequency pulse at peak stage was investigated. The experimental results demonstrated that stable droplet transfer and continuous welds are obtained by incorporating high-frequency pulses. The high-frequency pulses increase electromagnetic force and facilitate premature detachment of droplets. Especially, at a high frequency of 20 kHz, one drop per pulse (ODPP) droplet transfer mode is achieved, which is the ideal mode. In addition, high-frequency pulses increase axial arc pressure, strengthen convergent flow, and reduce the effect of divergent flow, resulting in increased weld penetration while decreasing weld width and porosity.

show abstract

Section: Matsumoto and Sasabementioning

confidence: 99%

Influence of high-frequency pulse on droplet transfer process and weld formation in double-wire median pulsed GMAW of aluminum alloy

Wu,

Lin,

Yang

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Welding processes that involve a hybridization of the hot-wire method (e.g., gas tungsten arc welding (GTAW), GMAW, submerged arc welding, laser welding) have been investigated and applied to improve productivity in fields beyond the construction machinery industry [11][12][13][14][15][16][17][18][19][20][21][22]. The welding phenomena and optimization of hot-wire feeding conditions have been investigated for the GTAW process [23].…”

Section: Introductionmentioning

confidence: 99%

Selection of Welding Conditions for Achieving Both a High Efficiency and Low Heat Input for Hot-Wire Gas Metal Arc Welding

Marumoto,

Fujinaga,

Takahashi

et al. 2024

JMMP

View full text Add to dashboard Cite

This study presents a new gas metal arc welding (GMAW) technique that achieves both high efficiency and low heat input using a hybridization of the hot-wire method. The optimal combination of welding speed and welding current conditions was investigated using a fixed hot-wire feeding speed of 10 m/min on a butt joint with a V-shaped groove using 19 mm thick steel plates. Molten pool stability and defect formation were observed using high-speed imaging and cross-sectional observations. The power consumption and heat input were predicted prior to welding and measured in the experiments. The results indicate that a combination of a welding current of 350–500 A and welding speed of 0.3–0.7 m/min is optimal to avoid defect formation and molten metal precedence using three or four passes. The higher efficiency and lower heat input achieved by hot-wire GMAW results in a weld metal of adequate hardness, narrower heat-affected zone, smaller grain size at the fusion boundary, and lower power consumption than those obtained using tandem GMAW and high-current GMAW. Based on the experimental results, a single bevel groove, which is widely used in construction machinery welding joints, was welded using hot-wire GMAW, and we confirmed that the welding part could be welded in six passes, whereas eight passes were required with GMAW only.

show abstract

Analysis of conductive channel and heat transfer mechanism of triple-wire gas indirect arc welding

Wang

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The effect of a hot-wire in the tandem GMAW process ascertained by developing a multiphysics simulation model

Cited by 4 publications

References 17 publications

Influence of high-frequency pulse on droplet transfer process and weld formation in double-wire median pulsed GMAW of aluminum alloy

Influence of high-frequency pulse on droplet transfer process and weld formation in double-wire median pulsed GMAW of aluminum alloy

Selection of Welding Conditions for Achieving Both a High Efficiency and Low Heat Input for Hot-Wire Gas Metal Arc Welding

Analysis of conductive channel and heat transfer mechanism of triple-wire gas indirect arc welding

Contact Info

Product

Resources

About