NDLI: Optimization of hybrid CO$_{2}$ laser-GMA welding parameters on dissimilar materials AH32/STS304L using Grey-based Taguchi analysis

Content Provider	Springer Nature Link
Author	Joo, Sung Min Bang, Han Sur Kwak, Si Young
Copyright Year	2014
Abstract	This study intended to verify the feasibility of laser-arc hybrid welding to dissimilar materials joints between high strength steel (AH32) and stainless steel (STS304L). For this, hybrid welding process for dissimilar materials was optimized by varying four parameters (welding speed, welding current, laser-arc distance, welding voltage) through Grey-based Taguchi analysis. A Grey relational analysis of the ultimate tensile strength (UTS), welding depth to width ratio (D/W) and absorbed energy (AE) attained from the Taguchi method can optimize the multiple-performance characteristics of the Grey relational grade. Moreover, hardness values microstructure and fatigue strength of welded joints fabricated under welding condition optimized by Grey-based Taguchi analysis were investigated. In the tensile test of welded joints, the damaged part was in BM of STS304L side. The hardness of welded joints exhibits within the acceptable range (the maximum value 340∼360 Hv). Dissimilar materials hybrid welded joints exhibited almost same fatigue strength for similar material STS304L SAW welded joints and lied well above the design curve(level D) for JSSC.
Starting Page	447
Ending Page	454
Page Count	8
File Format	PDF
ISSN	22347593
Journal	International Journal of Precision Engineering and Manufacturing
Volume Number	15
Issue Number	3
e-ISSN	20054602
Language	English
Publisher	Korean Society for Precision Engineering
Publisher Date	2014-03-12
Publisher Place	Springer
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hybrid CO$_{2}$ laser-GMA welding Dissimilar materials Grey-based taguchi analysisd Industrial and Production Engineering Materials Science
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Mechanical Engineering Electrical and Electronic Engineering

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