Research on the “jump sidewall” behavior and its signal characteristics in narrow gap P-MAG welding

Liu, Wenji; Li, Liangyu; Jianfeng, Yue; Pei-yu, Yan; Liu, Xiaohui

doi:10.1007/s00170-016-9796-5

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…The 4th region; is at the point where the foil inlets and outlets are in the fixture area. Here the distance from the terminal is made as protected as possible [30][31][32][33]. The importance of insulation is obvious during the experiments with both two capacitors and six capacitors.…”

Section: Figure 5 3rd Arc-zonementioning

confidence: 99%

Vaporizing Foil Actuator Welding Arc Problems and Precautions

Önder,

Külekci

2024

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi

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The management of the "arc" has an important place in welding methods made with electric discharge and in cases where the arc is not managed correctly, important technical and environmental problems may occur. Vaporizing foil actuator welding (VFAW) is a novel welding method developed particularly for joining metals and operates on the principle of electrical discharge. This study describes the welding prototype of vaporized foil actuator welding and outlines technical changes made during the increase in energy levels. The locations, causes, preventive interventions, and solution proposals for arc problems occurring during the welding process are addressed. Welding operations must be carried out safely and comprehensively. Alongside the welding method, potential safety issues should be identified. Necessary precautions must be taken before, during, and after welding. The safety of the welding method can be ensured by eliminating specific risks.

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Section: Figure 5 3rd Arc-zonementioning

confidence: 99%

Vaporizing Foil Actuator Welding Arc Problems and Precautions

Önder,

Külekci

2024

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi

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“…However, the factors that affect the NG-GMAW welding process are complex and strongly coupled, leading to poor fusion of the sidewalls and other welding quality problems [6][7][8]. The experimental analysis method to optimize the process parameters is complex, especially take a long time and cost [9][10].…”

Section: Introductionmentioning

confidence: 99%

Parameter Analysis and Optimization of the Rotating Arc NG-GMAW Welding Process

Duan¹,

Wang²,

Lu³

et al. 2018

Int. j. simul. model.

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Parameters of the narrow gap gas metal arc welding (NG-GMAW) method are complex and strongly coupled, which can easily cause welding defects, such as poor sidewall fusion, overlap, gas pore and slag inclusion. So parameter optimization of NG-GMAW is very difficult. The common experimental analysis method is complex, especially take a long time and cost. In this paper, the simulation analysis method is used to analyse NG-GMAW welding process. After the analysis of the NG-GMAW welding mechanism, the dynamic simulation model of the rotating arc NG-GMAW welding process is established firstly. Then, the influence of key process parameters on the welding quality is analysed in detail, which include the rotation angular velocity, rotation angular amplitude, wire feed speed, welding speed, sidewall stay time and so on. The simulation and analysis results illustrate the role and influence of the above parameters. In short, this paper provides a flexible and efficient method for the analysis and optimization of NG-GMAW welding process parameters to discover new phenomena, improve efficiency and save cost.

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Implementation of a two-stage algorithm for NG-GMAW seam tracking and oscillation width adaptation in pipeline welding

Liu,

Xue,

Zhou

et al. 2023

Science and Technology of Welding and Joining

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Seam tracking and oscillation width adaptation could effectively reduce the sidewall fusion defects in automatic narrow-gap gas metal arc welding (NG-GMAW). This study proposes a twostage algorithm to realise seam tracking and oscillation width adaptation in NG-GMAW pipeline welding. The first stage involves using the principal component analysis (PCA) eigenvectors to adjust the oscillating centre, enabling seam tracking and oscillation width adaptation for the hot and fill layer. In the second stage, dataset was prepared based on the tracking data from the first stage, which can guide the welding torch trajectory for the cap layer. Experimental results show that the proposed scheme achieves seam tracking and oscillation width adaptation with an accuracy of 0.1 mm.

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Research on the “jump sidewall” behavior and its signal characteristics in narrow gap P-MAG welding

Cited by 5 publications

References 8 publications

Vaporizing Foil Actuator Welding Arc Problems and Precautions

Vaporizing Foil Actuator Welding Arc Problems and Precautions

Parameter Analysis and Optimization of the Rotating Arc NG-GMAW Welding Process

Implementation of a two-stage algorithm for NG-GMAW seam tracking and oscillation width adaptation in pipeline welding

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