Ultrasound in arc welding: A review

Cunha, Tiago Vieira da; Bohórquez, Carlos Enrique Niño

doi:10.1016/j.ultras.2014.10.007

Cited by 52 publications

(19 citation statements)

References 18 publications

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“…For example, Manikandan et al [5] reported that pulsed current GTAW produced narrower welds with smaller HAZ and finer grain structure. Cunha and Enrique [12] showed that U-TIG welding method increased the weld penetration compared with conventional TIG welding process by adding the ultrasonic system on the welding apparatus. Zhang et al [13] proposed the technology of hybrid laser-TIG welding on the thick plates of structural steels.…”

Section: Introductionmentioning

confidence: 99%

Effect of Active Gas on Weld Shape and Microstructure of Advanced A-TIG-Welded Stainless Steel

Nakhaei

Khodabandeh

Najafi

2016

Acta Metall. Sin. (Engl. Lett.)

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Advanced A-TIG method was conducted to increase the weld penetration and compared with the conventional TIG welding process. A two-pipeline setup was designed to apply Ar ? CO 2 mixed gas as the outer layer, while pure argon was applied as the inner layer to prevent any consumption of the tungsten electrode. The results indicate that the presence of active gas in the molten pool led to the change in the temperature coefficient of surface tension so that the Marangoni convection turns inward and forms a deep weld zone. The increase in gas flow rate causes a decrease in the weld efficiency which is attributed to the increase in oxygen content in the weld pool and the formation of a thicker oxide layer on the weld surface. Moreover, the stir and the temperature fluctuation, led by double shielding gas, create more homogeneous nucleation sites in the molten pool so that a fine grain microstructure was obtained.

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Section: Introductionmentioning

confidence: 99%

Effect of Active Gas on Weld Shape and Microstructure of Advanced A-TIG-Welded Stainless Steel

Nakhaei

Khodabandeh

Najafi

2016

Acta Metall. Sin. (Engl. Lett.)

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“…Besides the above welding and joining processes, many attempts have been made to realize the coalescence between dissimilar metals, such as adhesive bonding [107] and ultrasonic welding [32,108]. The coatings on the cermet prepared by the Chemical Vapor Deposition (CVD) technique exhibits excellent wear resistance, superior hardness, and excellent adhesion strength [109].…”

Section: Othersmentioning

confidence: 99%

Dissimilar Welding and Joining of Cemented Carbides

Wang

Chen

et al. 2019

Metals

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Cemented carbides have been widely used in aerospace, biomedical/wearable sensor, automobile, microelectronic, and other manufacturing industries owing to their superior physical and chemical properties at elevated temperatures. These superior properties, however, make it difficult to process these materials using conventional manufacturing methods. In this article, an overview of the welding and joining processes of cemented carbide and steel is given, followed by a few examples of welding processes. Cemented carbides can be successfully joined by sinter-bonding, brazing and soldering, laser beam welding, tungsten inert gas (TIG) welding, diffusion welding, friction welding, electron-beam welding, and chemical vapor deposition. An overview of the benefits and drawbacks of brazing and soldering of cemented carbide and steel is presented, including reports on joint design, processes, and selection of brazing filler metals. The laser welding of cemented carbide and steel is addressed and reviewed, including reports on gap bridging ability, the inclusion/absence of filler metals, interlayers, and laser/TIG hybrid welding. Finally, a section is devoted to explaining the main issues remaining in the welding and joining of cemented carbide, corresponding solutions, and future work required.

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“…Ultrasonic wave, characterized by the mechanical effect, acoustic streaming, and the cavitation effect, has the advantages of improving the operation efficiency and technical characteristic in the arc welding process (Refs. 26,27). Sun et al applied the ultrasonic vibration in gas tungsten arc welding (GTAW) (Refs.…”

Section: Introductionmentioning

confidence: 99%

Bubble Evolution in Ultrasonic Wave-Assisted Underwater Wet FCAW

2019

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Ultrasound in arc welding: A review

Cited by 52 publications

References 18 publications

Effect of Active Gas on Weld Shape and Microstructure of Advanced A-TIG-Welded Stainless Steel

Effect of Active Gas on Weld Shape and Microstructure of Advanced A-TIG-Welded Stainless Steel

Dissimilar Welding and Joining of Cemented Carbides

Bubble Evolution in Ultrasonic Wave-Assisted Underwater Wet FCAW

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