Measurement of Welding Residual Stress in a 25-mm Thick Butt Joint using Inherent
Strain Method

Park, Jeong-ung; An, Gyu-baek; Woo, Wanchuck; Heo, Seung-min

doi:2013.31.4.67

J Weld Join > Volume 31(4); 2013 > Article

Research Paper

Journal of KWJS 2013;31(4):67-72.
DOI: https://doi.org/10.5781/KWJS.2013.31.4.67 Published online August 31, 2013.

Measurement of Welding Residual Stress in a 25-mm Thick Butt Joint using Inherent Strain Method

Jeong-ung Park¹, Gyu-baek An², Wanchuck Woo³, Seung-min Heo⁴

Correspondence: Gyu-baek An,
Email: gyubaekan@posco.com

Abstract

Overlay welding is carried out to improve the corrosion resistance, wear resistance and heat resistance on the surface of the chemical plant and steelmaking plant structures. In overlay welding, control of the bead size and the temperature distribution of weldment are particularly important because that is directly connected to the improvement of quality and productivity. The aim of this study is to model the welding heat source that is very useful to analyze the bead size and temperature distribution of weldment. To find the welding heat source model, numerical analyses are performed by using FE software MSC-marc.

Key Words: Overlay welding, Finite element analysis, Bead size, Temperature distribution