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Effect of Continuous Welding on Microstructure and Mechanical Properties of Angle and T-Bar

Jang Jihoon, Yoon Changsuk, Lee Sangik, Lee Dong-Geun

Archives of Metallurgy and Materials

2020

Vol. 65, iss. 4

1245--1248

Section steels produced by welding are essential parts for shipbuilding and offshore plant production. T-type and H-type section steels are produced by handwork for secondary processing, which is a generally difficult and tedious activity. Therefore, automatic welding, with sound welding properties and a high-speed process, is necessary to meet the production demands. Welding conditions can be optimized by controlling various parameters to obtain suitable and highly reliable microstructural properties. In this study, the heat affected zone and weld defects of fillet-welded Angle and T-bar parts were investigated in terms of their microstructural, macrostructural, and mechanical properties to ensure the soundness of AH36 section steel parts joined by continuous welds.