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Finite element simulation of edge welding in a fin plate: a study incorporating experimental measurement of input factors

Sudharsanam V., Sathiya Narayanan C., Shanmugarajan B., Prakash L.

Archives of Civil and Mechanical Engineering

2022

Vol. 22, no. 4

art. no. e208, 2022

The present paper discusses the finite element analysis (FEA) performed using SYSWELD software, simulating the Gas Metal Arc Welding (GMAW) of a fin plate on one of its edges. The objective of this work is to study how experimentally measured input factors contribute in the close prediction of thermal and mechanical behaviour of the edge welded fin plate, using FE simulation. The fin plate material considered is ASME SA 387 Gr 12 Cl 2 and of size 1200 mm × 50 mm × 6 mm. Three input factors required for the FEA namely the weld profile, solidus temperature, heat input of welding were identified given their possible influence on the accuracy of FEM prediction. All these factors were determined experimentally using appropriate methods. Then, using these factors as inputs, FEA of edge welding in the fin plate was performed in SYSWELD. This was followed by an experimental trial for validation purpose. The trends of thermal history, strain history and longitudinal bending distortion predicted by FEA and their closeness with the experimentally measured values have been discussed. Based on the findings, it was concluded that the experimental measurement of input factors has enabled the accurate FE simulation of edge welding in fin plate.

Forming Limit Diagram, Void Analysis, Strain Distribution and Surface Roughness for SS430 Sheets During Multipoint Incremental Forming

Ramkumar K., Paulraj G., Elangovan K., Sathiya Narayanan C.

Archives of Metallurgy and Materials

2018

Vol. 63, iss. 4

1709--1714

Single point incremental forming process is a most economical Die-less forming process. The major constraint of it is that it is a time consuming process. In this work, a new attempt was made in incremental forming process using Multipoint tool for SS430 sheets to increase the formability and to reduce forming time. Fractography analysis was made to study the size of voids that were formed during fracture. The forming limit diagrams were drawn and compared for single point incremental forming and the multipoint incremental forming of SS430 sheet. It was proved that the formability of SS430 sheet in the multipoint forming was better than the formability of that in single point forming and the time consumed was reduced. The strain distribution in both processes had also been studied along with surface roughness.