Simulation and Optimization on Welding Deformation of Big Size Hopper

Abstract

This paper main focus to reduce the welding deformation of hopper by using experimental methods and Finite Element analysis (FEA) including inherent strain method.  Through our finding, that hopper it must be designed and manufactured with high standard to reduce the distortion of metal during the welding process.  we have done further study to solve the issue by adding U shape and V shape including the bevel angle on edges of hopper and welding methods, the results has shown that the maximum deformations is reduced, to meet ISO STANDARD. Structure of hopper by using new design as U shape and V shape to absorb the deformation, and heat distribution will affect the surrounding of U or V shape will be the maximum.

Keywords: key words Welding distortion, finite element analysis, experimental, optimize of structure, welding methods.