Concept of the Model Robotized Cell for Plasma-GMAW Hybrid Welding

Pilat, Zbigniew; Szulc, J.

doi:10.4028/www.scientific.net/amm.613.43

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…Prezentowany hybrydowy system spawania Plasma-MAG został opisany w literaturze [5,6,7,8] oparty jest na specjalnej konstrukcji plazmotronie zintegrowanym z uchwytem elektrodowym GMA, będącym przedmiotem patentu firmy Plasma Laser Technologies z Izraela. Innowacyjność rozwiązania konstrukcyjnego polega na tym, że łuk plazmowy oraz łuk GMA oddzielone są od siebie kurtyną magnetyczną wymuszającą przepływ prądu łuku plazmowego i GMA przez materiał spawany.…”

Section: Spawanie Hybrydowe Plasma+magunclassified

Wybrane możliwości technologiczne hybrydowej metody spawania Plasma-MAG

Szulc

Chmielewski

Węglowski³

2016

Przegląd Spawalnictwa

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W artykule scharakteryzowano innowacyjną metodę spawania hybrydowego będącą ekonomiczną alternatywą dla spawania hybrydowego laser-MAG. Przedstawiono wybrane możliwości technologiczne oraz wybrane wyniki badań metalograficznych spoin czołowych wykonywanych metodą wysokowydajnego spawania hybrydowego Plasma-MAG. Przedstawiono korzyści techniczne i ekonomiczne wynikające z zastosowania opisanego rozwiązania.

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Section: Spawanie Hybrydowe Plasma+magunclassified

Wybrane możliwości technologiczne hybrydowej metody spawania Plasma-MAG

Szulc

Chmielewski

Węglowski³

2016

Przegląd Spawalnictwa

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“…Schematic drawing of the hybrid plasmatron is presented in Figure 1. The construction of the hybrid system and its technological properties can be found in literature [6].…”

Section: Introductionmentioning

confidence: 99%

Weldability of S700MC steel welded with the hybrid plasma + MAG method

et al. 2020

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The paper describes the microstructure of welded joints produced by the plasma+MAG (Metal Active Gas) method of S700MC high yield strength steel (700 MPa). Welded joints of thermomechanical steel have been made with different values of heat input. The results of metallographic research of welded joints, microstructure of the weld and heat affected zone, hardness distribution and impact toughness are presented. The heat affected zone consists of two sub-zones with different grain size and lowered hardness. The tensile test show that strength of welded joints was slightly reduced and the bending test revealed no crack formation in the weld. The impact toughness of measured welded samples with V-notch in HAZ (heat affected zone) reached high values that are higher comparing to samples with notch placed in the weld area. The investigation results show that the use of plasma concentrated heat source together with MAG welding arc does not significantly change the structure and deteriorate properties of welded S700MC thermomechanically treated high strength steel. The hybrid plasma+MAG welding method has a potential to become a beneficial alternative to other welding processes due to its high efficiency, reduced amount of weld metal content or limited requirements for a preparation of edges of welded joints.

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Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

Trinh,

Tashiro,

Suga

et al. 2024

Int J Adv Manuf Technol

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This study aims to clarify the effect of oxygen in shielding gas on weldability in the plasma-GMA (Gas Metal Arc) hybrid welding process of high-tensile strength steel plates. The difference in keyhole profile and bead formation, when the GMA shielding gas was pure Ar, Ar + 2% O2, or Ar + 20% CO2, was investigated for plate thicknesses of 6 and 9 mm for the first time. It was found that the weld beads were in good condition for 6 mm thickness plates for all shielding gases, which implied that the window of welding conditions for this thickness is wide. In contrast, for 9 mm thickness plates, a fully penetrated weld bead was achieved only in Ar + 20% CO2, and weld bead penetration in Ar + 20% CO2 is higher than in pure Ar and Ar + 2% O2 in the same welding condition. Due to decreased surface tension caused by sufficiently increased oxygen absorbed into the weld pool, the keyhole diameter increased to penetrate the bottom side of the plate, and the depressing weld pool surface under GMA allowed the heat input from the GMA to be directly applied to a deeper position. Consequently, the plasma-GMA hybrid welding process with Ar + 20% CO2 achieved a complete penetration for a plate of 9 mm thickness, owing to the effects of both phenomena. It proved a potential to increase penetrability in welding thicker plates by controlling oxygen content in shielding gas of GMA adequately.

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Concept of the Model Robotized Cell for Plasma-GMAW Hybrid Welding

Cited by 6 publications

References 4 publications

Wybrane możliwości technologiczne hybrydowej metody spawania Plasma-MAG

Wybrane możliwości technologiczne hybrydowej metody spawania Plasma-MAG

Weldability of S700MC steel welded with the hybrid plasma + MAG method

Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

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