Study of arc welding stability in flux cored arc welding process and pulsed continuous current

Neves, Alisson Caetano; Moreno, João Roberto Sartori; Correa, Celso Alves; Olivio, Émillyn Ferreira Trevisani

doi:10.1080/09507116.2021.1971936

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…Continued research and advancements in control mechanisms may help overcome these optimization hurdles, ultimately enhancing the effectiveness and e ciency of this welding technique. When focusing on low carbon welding consumables within the context of metal ux cored welding with pulse current, speci c challenges and considerations emerge [5,[13][14][15]. One primary concern in using low carbon welding consumables is maintaining the balance between achieving strong welds and minimizing the risk of brittle welds due to lower carbon content.…”

Section: Introductionmentioning

confidence: 99%

Design of pulse current welding modes for flux-cored wire for additive manufacturing purpose

Zavdoveev,

Rogante,

Pozniakov

et al. 2024

Preprint

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This research presents the results of an experimental investigation based on experiment using flux-cored wire and solid wire with the same average current but different geometries were studied. The primary objective of this research is to explore and optimize welding modes for flux-cored wire, emphasizing the disparities in pulse current modes when compared to solid wire welding. It underscores the importance of reevaluating welding modes traditionally considered suitable for solid wires when working with flux-cored welding materials. To this end, the paper examines the application scope of flux-cored wires and highlights the necessity for such considerations. Previous research findings indicate that even when employing identical welding modes, specifically with respect to average welding current in the case of Pulse Current Gas Metal Arc Welding (PC-GMAW), the resulting weld formations can exhibit substantial variations. This paper contributes to understanding of the factors affecting weld quality and sets the algorithm for optimizing pulse current modes for flux-cored wire welding applications.

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Section: Introductionmentioning

confidence: 99%

Design of pulse current welding modes for flux-cored wire for additive manufacturing purpose

Zavdoveev,

Rogante,

Pozniakov

et al. 2024

Preprint

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“…Por sua vez, Neves et al (2021), atestaram a eficácia da estabilidade de processos FCAW pulsado através de estudos estatísticos da variação dos sinais de corrente e tensão. Rezende et al (2011), estudaram a estabilidade de processos GMAW através da interpretação de índices numéricos que traduzem a variação de fenômenos de transferência metálica (tempo e período de transferência e seus desvios padrão).…”

Section: Introductionunclassified

Proposta De Uma Analise De Regressão Para Um Processo De Soldagem Com Arame Tubular Pulsado Através Dos Sinais De Corrente E Tensão

Roberto Sartori Moreno,

Caetano Neves,

Alves Correa

et al. 2024

Sodebras

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Este estudo propõe a análise estatística de soldas de revestimento utilizando processo de soldagem com arame tubular e corrente contínua pulsada (P-FCAW), com análise de variância para analisar a eficácia de modelo de regressão de primeira ordem e relacionar os valores obtidos de corrente média, tensão média, potência média, largura e reforço. Corpos de prova de aço SAE 1020 foram usados para receber cordões de revestimento de arame metálico tubular em inoxidável martensítico 410 NiMo. Alguns parâmetros de soldagem foram mantidos constantes como a composição do gás e vazão, quantidade de cordões, corrente de pico e tempo de pico entre outros, enquanto corrente média, frequência de pulsação, velocidade de soldagem e DBCP são variados em três níveis, conforme método de TAGUCHI (L9) visando reduzir o número combinações. Portanto, a análise de variância foi aplicada nos resultados e estatisticamente a corrente média e a distância bico de contato peça foram as variáveis que mais influenciaram as respostas obtidas. O coeficiente de determinação ou R2 da regressão linear simples para quatro modelos foram acima de 80%, enquanto que nos sinais elétricos ficou entre 85 e 97%. A maior largura obtida foi de 11,49 mm na corrente média de 230 A, velocidade de soldagem de 300 mm/min, distancia bico de contato peça de 30mm e frequência de pulsação de 30,30Hz.

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“…In this method the flux, applied externally in SAW method is placed inside the wire, allowing the welding process to be carried out at higher current densities. In addition, another important effect of FCAW is that the greater penetration obtained in the MAG method and the faster and cleaner weld deposits obtained in MIG welding are provided in a single method more economically [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the alloying elements effect in the flux-cored wire and submerged arc welding flux combination

Özkan

2024

Journal of Scientific Reports-A

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In this study, it was aimed to investigate hardfacing weld metals’ metallurgical and mechanical properties produced by flux-cored wire and submerged arc welding flux combinations. The usage of the combination for these two methods, which are generally preferred separately, distinguishes this research from other similar studies. In the first stage, the optimum production conditions and physical properties of the submerged arc welding fluxes were determined and then flux-cored wire manufacturing details have been defined. Agglomerated submerged arc welding fluxes and seamed type flux-cored welding wires samples were investigated according to the changing carbon, chromium, niobium, and wolfram ratios, while manganese and silicon values were kept constant. Five different samples have been prepared with this purpose, and the hardness test, wear test, microstructure analysis, chemical analysis, and X-Ray diffraction analysis were carried out respectively. It was observed that the increase in hardness affects the wear resistance directly. The effect of chemical analyses on the microstructure has also been determined. Moreover, while the increasing amount of chromium carbide clearly changed the microstructure, and the addition of refractory metals enabled the formation of the eutectic and dendritic structure. The problems of low efficiency in flux-cored wire and inability to alloy in submerged arc welding flux were solved with this method. Therefore, the production of hardfacing consumables via submerged flux-cored arc welding combination method was achieved firstly by using domestic raw materials, and one TUBITAK project and one PhD thesis were successfully finished with these data.

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Study of arc welding stability in flux cored arc welding process and pulsed continuous current

Cited by 7 publications

References 21 publications

Design of pulse current welding modes for flux-cored wire for additive manufacturing purpose

Design of pulse current welding modes for flux-cored wire for additive manufacturing purpose

Proposta De Uma Analise De Regressão Para Um Processo De Soldagem Com Arame Tubular Pulsado Através Dos Sinais De Corrente E Tensão

Investigation of the alloying elements effect in the flux-cored wire and submerged arc welding flux combination

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