defects in friction stir welding of steel springer for
Defects in Friction Stir Welding of Steel SpringerLink
Mar 22, 2018 · Two new defects associated with the friction stir welding process are introduced in this work. The first defect identified in this work is a microcrack found between the plunge and the steady state region and attributed to the traverse moving of the tool with unsuitable speed from the plunge-dwell to the steady state stage.sp.info Defects in Friction Stir Welding of Steel - SpringerTwo new defects associated with the friction stir welding process are introduced in this work. The ﬁrst defect identiﬁed in this work is a microcrack found between the plunge and the steady state region and attributed to the traverse moving of the tool with unsuitable sp.info Table 3 Defects in Friction Stir Welding of Steel Defects associated with friction stir welding of two steel grades including DH36 and EH46 were investigated. Different welding parameters including tool rotational and tool traverse (linear) speeds were applied to understand their effect on weld seam defects including microcracks and voids formation. SEM images and infinite focus microscopy were employed to identify the defects types. Two new sp.info Defect identification in friction stir welding - SpringerSep 17, 2016 · Different types of defects are produced in FSW due to improper selection of process parameters. Higher and lower heat inputs produce defects like flash and cavity/void, respectively (Kim et al. 2006 ). Kissing bond defect is produced at lower tilt angle, and oxide layer on workpiece surface produces Lazy S defect (Chen et al. 2006 ).
Weld defect localization in friction stir welding
Nov 18, 2020 · The article attempts to detect the defects in friction stir welding (FSW) process by analyzing the signal acquired during welding. The said welding technique utilizes pressure and heat developed by the usage of a non-consumable tool. Thus, the axial force signal carries a lot of information about the physical process, and hence, it could be used to identify the weld defects. Signal analysis sp.info