Aluminum alloy and galvanized steel CMT weld joints for lightweight automobile applications. (1st September 2022)

• Record Type: Journal Article
• Authors: Zope, Bhagyashri; Dey, Tapobrata; Jatti, Vijaykumar S; Sarnobat, Sandeep S
• Is Part Of: Engineering research express. Volume 4:Number 3(2022)
• Publication Date: 2022-09-01
• Subjects: CMT -- ANOVA -- Al6061-T6 and galvanized steel -- aluminum alloy -- automobile applications -- optimization; Engineering -- Periodicals; 620.005
• DOI: 10.1088/2631-8695/ac7125
• Languages: English
• ISSNs: 2631-8695

Abstract

Abstract: Cold Metal Transfer (CMT) lap joint of Al6061-T6 and Galvanized steel is studied in this paper using design of experiments method. Welding parameters considered for the work includes stick out distance (10 mm −14 mm), wire-feed speed (3.5 m min −1 – 4 m min −1 ) and torch angle (10˚ to 15˚). Weld strength is optimized by using Taguchi analysis by optimizing input variables with 100% argon gas and stick out distance of 14 mm and overlap region of 13 mm. Weldments were cut in shape and size as per ASTM E8 to perform uni-axial tensile test. Further ANOVA analysis is used to understand the effect of individual parameters & their contribution on weld strength. Result depicted all three input parameter significantly effects the strength. Experiments showed that Al6061-T6 is possible to be welded with the Galvanized-steel using CMT.