Effect of the eddies formed inside a weld pool on welding defects during plasma keyhole arc welding

• Published in: Journal of manufacturing processes Vol. 59; pp. 649 - 657
• Main Authors: Van Nguyen, Anh, Tashiro, Shinichi, Ngo, Manh Huu, Van Bui, Hanh, Tanaka, Manabu
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2020
• Subjects: Eddy; Heat transportation; Plasma keyhole arc welding; Welding defects; X-ray observation system; X-ray observation system; Plasma keyhole arc welding; Welding defects; Heat transportation; Eddy

•3-dimensional images of eddies of weld pool in plasma keyhole arc welding (PKAW) process were observed in details.•Relationship among heat transport, convection, eddies formation and welding defects was discussed.•The results from this study can be applied to control efficiently PKAW process for re...