Investigating the effect of varying multi-pass welding sequence and plate thickness with manhole on plate distortion

Document Type : Original Article

Authors

Mechanical Department, Faculty of Engineering, Alexandria University, Egypt.

10.1088/1742-6596/3058/1/012020

Abstract

Welding methods are crucial for component assembly in various industries, yet many forms of deformation due to the irregular thermal expansion and contraction are noticed, affecting their dimensions and alignment. This paper presents a set of experimental models alongside a simulation for the welding process utilizing a thermo elastic plastic approach with COMSOL Multiphysics 6.0, yielding results that closely align with each other. The study adopts multi-pass fillet welding instead of the traditional single-pass method. This is done by flux-cored arc welding under specific constraints. The study examines the mutual effects of varying welding sequences and plate thicknesses, without altering stiffener geometrical configuration. The focus is on distortion reduction in a flat bar stiffened plate with a manhole opening. This plate is considered as one of the tank faces used in the ship industry. The research successfully determines vertical displacement due to distortion. Findings also indicate that optimizing welding sequences is essential for different thicknesses, particularly thicker ones, which are significantly affected by sequence variation more than thinner plates.
The International Conference on Applied Mechanics and Mechanical Engineering
Volume 22, Issue 22
22nd International Conference on Applied Mechanics & Mechanical Engineering, AMME-22
2025
Pages 1-12

Files

Share

How to cite

Statistics