Experimental and finite element investigation on hybrid GTAW-GMAW of duplex stainless steel

Ebrahimpour, Ali; Salami, Shahin; Saeid, T.

doi:10.1007/s00170-023-10806-6

Cited by 5 publications

(1 citation statement)

References 54 publications

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“…Predictions can be made on the weld geometry, with the distance between the electrodes at 10 mm. In a later study by Ebrahimpour et al [10], the model was extended to make predictions on the microstructure. In the experimental validation, the TIG-MIG hybrid process achieved close to 50% austenite.…”

Section: Introductionmentioning

confidence: 99%

Comparative study between TIG-MIG hybrid and MIG welding of 1.4462 duplex steel joints

Weis,

Grunert,

Brumm

et al. 2023

Preprint

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Duplex steels are used for applications that require high strength and ductility combined with good corrosion resistance. An economical welding technology to handle these steels is achieved by combining a MIG and TIG arc process. The aim is to improve welding speed and quality by utilizing a TIG-MIG hybrid welding process to join 1.4462 duplex steel with a thickness of 2 mm. The interaction between the two arcs, caused by the blowing effect, is an enormous challenge, that can be counteracted with a defined torch position and current modulation. For this purpose, a variation of the MIG (pulsed and AC pulsed arc) and TIG process (AC and pulsed DC) took place. The influence of electrical parameters on process stability and material transfer were investigated. For analysis, an evaluation of high-speed recordings (5,000 frames per second) and synchronized measured current / voltage curves (200 kHz) is carried out. Based on a number of selected specimens, a welding procedure test according to ISO 15614-1 are performed to determine the welding seam quality. The test includes the characterization by tensile and hardness testing, macroscopic and microscopic examination. Additionally, the specimens are examined according to ISO 5817.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative study between TIG-MIG hybrid and MIG welding of 1.4462 duplex steel joints

Weis,

Grunert,

Brumm

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Achieving Optimal Weld Bead Geometry and Dilution Ratio in Tungsten Inert Gas–Metal Inert Gas Hybrid Welding through ANN-TLBO Algorithmic Optimization

Kumar,

Mohamed,

Bajpai

2024

J. of Materi Eng and Perform

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Comparative study between TIG-MIG hybrid and MIG welding of 1.4462 duplex steel joints

Weis,

Grunert,

Brumm

et al. 2023

Weld World

View full text Add to dashboard Cite

Duplex steels are used for applications that require high strength and ductility combined with good corrosion resistance. An economical welding technology to handle these steels is achieved by combining the MIG and TIG arc processes. The aim is to improve welding speed and quality by utilizing a TIG-MIG hybrid welding process to join 1.4462 duplex steel with a thickness of 2 mm. The interaction between the two arcs, caused by the blowing effect, is an enormous challenge that can be counteracted with a defined torch position and current modulation. For this purpose, a variation of the MIG (pulsed and AC pulsed arc) and TIG process (AC and pulsed DC) took place. The influence of electrical parameters on process stability and material transfer was investigated. For analysis, an evaluation of high-speed recordings (5000 frames per second) and synchronized measured current/voltage curves (200 kHz) is carried out. Based on a number of selected specimens, a welding procedure test according to ISO 15614-1 is performed to determine the welding seam quality. The test includes the characterization by tensile and hardness testing and macroscopic and microscopic examination. Additionally, the specimens are examined according to ISO 5817.

show abstract

Experimental and finite element investigation on hybrid GTAW-GMAW of duplex stainless steel

Cited by 5 publications

References 54 publications

Comparative study between TIG-MIG hybrid and MIG welding of 1.4462 duplex steel joints

Comparative study between TIG-MIG hybrid and MIG welding of 1.4462 duplex steel joints

Achieving Optimal Weld Bead Geometry and Dilution Ratio in Tungsten Inert Gas–Metal Inert Gas Hybrid Welding through ANN-TLBO Algorithmic Optimization

Comparative study between TIG-MIG hybrid and MIG welding of 1.4462 duplex steel joints

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