Optimisation of Weld Overlay Cladding Parameters Using Full-Factorial Design of Experiment

Lydia Chan, Islam Shyha, Dale Dryer, John Hamilton

Research output: Contribution to journalConference articlepeer-review

Abstract

Weld Overlay Cladding (WOC) shares the same scientific principals as conventional welding where there are multiple governing factors that control the process and outcome. The present work employs a Design of Experiment (DoE) approach to optimising process parameters for cladding a nickel superalloy onto low alloy steel with the aim to improve productivity and quality. The arc current, the clad metal heating current were identified as the key process variables for this stage of experimentation. A full-factorial 4-by-2 test was carried out to identify the optimal levels. Results showed that there is a mild positive trend between the height of individual strings of beads and both variables. However no relationship was established with the depth of penetration, nor with the height of single or double layer stacks. The optimal level of the variables was therefore chosen to be the one that has the highest productivity rate as there were no significant differences. Further experimentation has been planned and described in this paper.
Original languageEnglish
Pages (from-to)54-58
JournalMaterials Science Forum
Volume880
Early online date21 Nov 2016
DOIs
Publication statusPublished - Nov 2016
Event4th Asia Conference on Mechanical and Materials Engineering - Kuala Lumpur
Duration: 1 Nov 2016 → …

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