A Process Model for Electron Beam Welding with Variable Thickness

Jiang Lin Huang; Jean Christophe Gebelin; Richard Turner; Roger C. Reed

doi:10.4028/www.scientific.net/MSF.762.538

Paper Titles

The Effects of Phosphotungstic Heteropoly Acid on Degradation Behaviour of Hardened Epoxide Polymers in Near-Critical Water
p.515

Simulation of the Hot Extrusion Process of Sintered WCu40 Covered with a Steel Cup
p.520

Microstructure and Reaction Mechanism of Multi-Laminated Ti-(SiC_p/Al) Composites Subjected to Annealing at 1300°C
p.526

On the Modelling of a Pulsed TIG Weld Process in a Nickel Superalloy
p.531

A Process Model for Electron Beam Welding with Variable Thickness
p.538

Physical and Numerical Simulation of the Heat-Affected Zone of Multi-Pass Welds
p.544

Physical Simulation of Weldability of Weldox 1300 Steel
p.551

Physical Simulation on Microstructure and Properties for Weld HAZ of X100 Pipeline Steel
p.556

The Effect of Stabilizers on the Grain Growth and Impact Toughness of 21%Cr Ferritic Stainless Steels High-Temperature Heat-Affected Zones
p.562

HomeMaterials Science ForumMaterials Science Forum Vol. 762A Process Model for Electron Beam Welding with...

A Process Model for Electron Beam Welding with Variable Thickness

Abstract:

A process model for electron beam (EB) welding with a variable thickness weld joint has been developed. Based on theoretical aspects and experimental calibration of electron beam focusing, welding parameters including beam power, focus current, working distance and welding speed were formulated in the heat source model. The model has been applied for the simulation of assembly of components in a gas turbine engine compressor. A series of metallographic weld sections with different welding thickness were investigated to validate the predicted thermal results. The workpieces were scanned both prior to-and after welding, using automated optical metrology (GOM scanning) in order to measure the distortion induced in the welding process. The measured result was compared with predicted displacement. This work demonstrates the attempts to improve the EB welding process modelling by connecting the heat input directly from the actual welding parameters, which could potentially reduce (or even remove) the need for weld bead calibrations from experimental observation.