Effect of Vibratory Weld Conditioning on Weld Impact Toughness

Pučko, Bogdan

doi:10.1080/10426910902812697

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…Vibration-assisted welding was reported to be enhancing the impact toughness of the Niomol490K weld in an experimental study by Pucko. 91 Results were evaluated against three other weld conditions. It was concluded that the vibration-assisted welding upsurges the energy absorbed in the impact test and improves the rupture behavior.…”

Section: Welding With Vibration Assistancementioning

confidence: 99%

An insight into ultrasonic vibration assisted conventional manufacturing processes: A comprehensive review

Kumar¹,

Kumar²,

Singh³

et al. 2022

Advances in Mechanical Engineering

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Conventional manufacturing processes such as casting, forming, welding, machining, etc., have been optimized using different improvement techniques in the last few decades. The alterations in these processes have led to more efficient and productive manufacturing practices for the industry. One of these modification techniques is the deployment of ultrasonic vibrations in conventional manufacturing processes. In the last few decades, ultrasonic vibration assistance to manufacturing processes has seen an uprise and was the point of attraction for different research groups. Several improvements by utilizing ultrasonic vibration in manufacturing practices have been reported by the authors in the past. In this article, an attempt has been made to review all the reported techniques for different conventional processes viz. casting, forming, machining, and welding. The article outlines different research findings from the extensive work on ultrasonic vibration assistance showcasing the improved mechanical and morphological properties. The improvisation in the performance parameters viz. friction reduction, stress reduction, tool wear, surface finish, and grain structure has been witnessed by ultrasonic assistance in contrast to simple manufacturing processes. The outcomes have been summarized along with the optimized set of parameters from various studies.

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Section: Welding With Vibration Assistancementioning

confidence: 99%

An insight into ultrasonic vibration assisted conventional manufacturing processes: A comprehensive review

Kumar¹,

Kumar²,

Singh³

et al. 2022

Advances in Mechanical Engineering

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“…4 If vibrations are applied during casting, the solidification process changes, altering the restructuring dynamics and consequently the final mechanical properties. 5 Several studies have been developed to analyze the effect of vibratory weld conditioning (VWC) on microstructure and the final mechanical properties, observing an improvement of the impact toughness, 6 a reduction of microhardness along the resolidified melt zone, 7 and a reduction of distortions and residual stresses. 8 Subharmonic vibration added to the base weldment excites the weld pool, and solidification, particularly outside, is delayed a few seconds.…”

Section: Introductionmentioning

confidence: 99%

Vibration-assisted laser welding: Frequency and amplitude vibration effect on the microhardness of A36 steel

Vidal

Barrionuevo

Ramos‐Grez

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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Laser welding is one of the most versatile welding techniques for joining advanced materials. However, thermal cycles induced around weld lines generate residual stresses and inhomogeneous plastic deformation during the welding process. Vibratory weld conditioning is an alternative to enhance the mechanical properties of metal sheets during casting and welding. This study aims to analyze the effects of vibration on the microhardness of the resolidified melt zone after a laser weldment. Two 1 mm thick A36 steel sheets were welded in lap configuration using a CO2 laser, with varying vibration amplitudes up to 0.56 mm peak-to-peak and frequencies up to 1034 Hz. We confirmed that mechanical vibrations during the welding process alter the final properties of the joint compared to non-vibrated samples. Based on the experimental results, vibration can either increase or decrease the bead's final microhardness in a range of [−5%, 7%] by controlling the frequency and vibration amplitude. Furthermore, average microhardness was predicted by applying several machine learning regressors, showing an accuracy of ±3%, denoting the usefulness of the random forest and AdaBoost algorithms provide.

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“…The demands on new welding techniques, such as active flux [6], laser welding [7], resistance-friction stir hybrid welding [8], vibratory welding [4], and electromagnetic field hybrid welding [9,10], are continuously increasing. Although some new approaches have been proposed to improve the performance of welding joint [11] and property of surface layer [12,13], the gas shield arc welding technique still dominates the main welding manufacture fields.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, in the welding field, the simpler welding parameters monitoring [1] and more stable welding process [2] are required, which ensure better welding impact toughness [3,4], and higher quality of welding joints [5]. The demands on new welding techniques, such as active flux [6], laser welding [7], resistance-friction stir hybrid welding [8], vibratory welding [4], and electromagnetic field hybrid welding [9, 10], are continuously increasing.…”

Section: Introductionmentioning

confidence: 99%

EMS-CO₂Welding: A New Approach to Improve Droplet Transfer Characteristics and Welding Formation

Luo

Wang

et al. 2010

Materials and Manufacturing Processes

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In this article, to improve the stability of droplet transfer and reduce the spatter of pure carbon dioxide gas shield welding (CO 2 welding), we propose a new welding method called EMS-CO 2 welding by applying an additional longitudinal electromagnetic field to a CO 2 welding process (abbr. EMS-CO 2 welding). The characteristics of droplet transfer, welding formation and microstructure between EMS-CO 2 welding and general CO 2 welding on a Q235 low carbon steel plate are studied. The results show that EMS-CO 2 welding improves droplet transfer process, increases the stability of droplet transfer, and delivers better control of the welding spatter. Meanwhile, EMS-CO 2 welding generates welding formation with refined grains, welding seams with uniform microstructure, and welding joints with a higher quality. Therefore, EMS-CO 2 welding stands for the state of the art in short-circuit transfer CO 2 welding especially. IntroductionRecently, in the welding field, the simpler welding parameters monitoring [1] and more stable welding process [2] are required, which ensure better welding impact toughness [3,4], and higher quality of welding joints [5]. The demands on new welding techniques, such as active flux [6], laser welding [7], resistance-friction stir hybrid welding [8], vibratory welding [4], and electromagnetic field hybrid welding [9, 10], are continuously increasing. Although some new approaches have been proposed to improve the performance of welding joint [11] and property of surface layer [12, 13], the gas shield arc welding technique still dominates the main welding manufacture fields.The arc welding technique, which uses an additional electromagnetic field, is called electromagnetic stirring welding (EMS welding) [10,13]. The EMS welding technique has been developed uninterruptedly because of its good effects [14], low cost [11,12], and easily implemented equipments [15]. Many research works and engineering practical experience indicate that the EMS welding technique can control arc shape and arc behavior action [15,16] and affect the molten metal flowing in welding pool [11], nucleation and crystalline growth [14,17], and the welding solidification process [18]. With the use of EMS welding technique, the primary grain of the welding joint is refined [10,17,18], and the segregation and nonhomogeneity of the welding seam are reduced or eliminated [13,14,17]. Because EMS welding improves plasticity and toughness of the welding joint and reduces

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Effect of Vibratory Weld Conditioning on Weld Impact Toughness

Cited by 7 publications

References 15 publications

An insight into ultrasonic vibration assisted conventional manufacturing processes: A comprehensive review

An insight into ultrasonic vibration assisted conventional manufacturing processes: A comprehensive review

Vibration-assisted laser welding: Frequency and amplitude vibration effect on the microhardness of A36 steel

EMS-CO₂Welding: A New Approach to Improve Droplet Transfer Characteristics and Welding Formation

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Effect of Vibratory Weld Conditioning on Weld Impact Toughness

Cited by 7 publications

References 15 publications

An insight into ultrasonic vibration assisted conventional manufacturing processes: A comprehensive review

An insight into ultrasonic vibration assisted conventional manufacturing processes: A comprehensive review

Vibration-assisted laser welding: Frequency and amplitude vibration effect on the microhardness of A36 steel

EMS-CO2Welding: A New Approach to Improve Droplet Transfer Characteristics and Welding Formation

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EMS-CO₂Welding: A New Approach to Improve Droplet Transfer Characteristics and Welding Formation