Unique characteristics of the novel-GTAW process for the butt joint of ultra-thin silicon steel sheets

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dc.contributor.authorNgo, Manh Huu
dc.contributor.authorLe, Van Thao
dc.contributor.authorGandham, Bharat
dc.contributor.authorNguyen, Van Anh
dc.contributor.authorLe, Duy Han
dc.contributor.authorVan, Truong Nguyen
dc.contributor.authorVan, Tuan Nguyen
dc.date.accessioned2023-01-06T14:50:40Z
dc.date.available2023-01-06T14:50:40Z
dc.date.issued2022-12-17
dc.description.abstractButt joining of ultra-thin silicon steel sheets is a major challenge because of the ultra-thin thickness, high silicon content, and the coating layer on their surfaces. For the first time, welding butt-joint of the 0.2 mm ultra-thin silicon steel sheets has been performed successfully and reported in this paper. The results show that the weld beads fabricated by the novel-GTAW process are straight, stable, and without defects. They have a narrower width on the top and a larger width on the bottom side compared to the conventional-GTAW process. The mechanical properties of the welding joints also overmatch that of the base metal, confirming good qualities of the weldment. The success of the novel GTAW process in butt weld of ultra-thin silicon steel sheets is because of its unique characteristics: First, the mechanism of the novel-GTAW torch allows removing and blowing the insulation coating layer to prevent its penetration into the melting point and its accumulation on the electrode during the welding process; thus, eliminating welding defects and electrode wear and maintaining the arc stability. Second, the novel-GTAW process enables superiorly reducing the heat input and increasing the cooling rate, which ensures the high quality of the butt weld of ultra-thin silicon steel sheets. Lastly, the shielding efficiency of the melting pool is enhanced to prevent silicon oxidation and welding defects.en_UK
dc.identifier.citationNgo MH, Le VT, Gandham B, et al., (2023) Unique characteristics of the novel-GTAW process for the butt joint of ultra-thin silicon steel sheets. Journal of Manufacturing Processes, Volume 85, January 2023, pp. 894-903en_UK
dc.identifier.issn1526-6125
dc.identifier.urihttps://doi.org/10.1016/j.jmapro.2022.11.066
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18896
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectNovel-GTAW processen_UK
dc.subjectUnique characteristicsen_UK
dc.subjectButt jointen_UK
dc.subjectUltra-thin sheeten_UK
dc.subjectSilicon steelen_UK
dc.titleUnique characteristics of the novel-GTAW process for the butt joint of ultra-thin silicon steel sheetsen_UK
dc.typeArticleen_UK

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