Browse > Article
http://dx.doi.org/10.5781/KWJS.2012.30.5.451

A Study on Welding Distortion of GTA Circular Type Lap Joint in STS304L Thin Plate  

Kim, Il-Ho (Industrial Technology Institute, Hyundai Heavy Industries Co., LTd.)
Kim, Ha-Geun (Industrial Technology Institute, Hyundai Heavy Industries Co., LTd.)
Shin, Sang-Beom (Industrial Technology Institute, Hyundai Heavy Industries Co., LTd.)
Park, Dong-Hwan (Ulsan University, Institute of E-vehicle Technology)
Publication Information
Journal of Welding and Joining / v.30, no.5, 2012 , pp. 57-63 More about this Journal
Abstract
The purpose of this study is to evaluate the welding distortion of the circular type lap joint in STS304L of 0.7mm thickness by using FEA. In order to do it, a heat input model for GTA welding process with non-consumable electrode was established through comparing the molten pool shapes and temperature distributions obtained by both FEA and experiment. With the heat input model, the welding distortion of the circular type lap joint was evaluated by 3-D FEA. From FEA results, it was found that 3-D FEA with proper heat input model can be used for the evaluation of the excessive distortion of the circular type lap joint of STS304L thin plate. In addition, the root cause of the excessive distortion in the weld was also identified as the excessive compressive residual stress in the tangential direction of the weld.
Keywords
STS 304L; Lap Joint; GTA; Heat input model; Welding; Distortion; Residual stress; Finite element analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim Ha Geun : A Study on the Control Technology for Global Distortion of the Deck in the Superstructure during Manufacturing Process, Journal of KWJS, 28-5, 2010 (in Korean)
2 Yong Lae-Shim : Modeling of Welding Heat Input for Residual Stress Analysis, Journal of KWS, 11-3, Sep., 1993
3 P.Tekriwal and J.Mazumder : Finite Element Analysis of Three-Dimensional Transient Heat Transfer in GMA Welding, Welding J. vol. 67, 150-156, 1988
4 Strength Commission of Welded Structure : Standardization for Temperature Distribution Prediction of the Arc Weld using FEA, Journal of KWS, 23-6 (2005), 497-503 (in Korean)
5 Sang-Beom Shin : Evaluation of Buckling Distortion for the Thin Panel Welded Structure According to Welding Process, Journal of KWJs, 26-3, June., 2008
6 K. Masubuchi : Analysis of Welded Structures, Pergamon Press, 1980