Publication: Effect of cold deformation on properties of aluminium alloy fabricated using wire arc additive manufacturing technique
| datacite.subject.fos | oecd::Engineering and technology::Mechanical engineering | |
| dc.contributor.author | Muhammad Ajwad Bin Roslee | |
| dc.date.accessioned | 2025-05-19T03:14:11Z | |
| dc.date.available | 2025-05-19T03:14:11Z | |
| dc.date.issued | 2023-04-01 | |
| dc.description.abstract | Additive manufacturing (AM) owns a huge potential in repair and remanufacturing industries due to its advantage of minimizing waste while having the abilities to produce complex shapes without mold. Current technique to obtain net shape is limited due to strength and lead time issues. AM also provides low cost solution for repairs with wire arc additive manufacturing (WAAM) which use common welding technique. However, this method produces parts with lower strength and hardness due to the high heat input and porosity. In this study, WAAM produced parts was constructed using manual TIG welding at different orientation and welding direction and new strategy was proposed, where cold forging process is introduced as a post deposition treatment, where the parts are subjected to different thickness reduction. The main aim of this study is to evaluate the tensile properties and hardness of forged AA4043 wire arc additive manufacturing (WAAM) constructed at different welding orientation and direction. Result discovered that the ultimate tensile strength (UTS) increased by 44%, from average UTS of 160 MPa to 200 MPa, and hardness value increases by 70%, from average hardness of 43 HV to 73 HV. Using SEM analysis, it is discovered that forging reduced the porosity sizes by 90%. Even with the improvement made by forging, upright orientation still suffer from interlayer strength, producing lower UTS compared to other parameters. Keywords: WAAM; AA4043; strain hardening; cold forging; repair | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/21689 | |
| dc.language.iso | en | |
| dc.title | Effect of cold deformation on properties of aluminium alloy fabricated using wire arc additive manufacturing technique | |
| dc.type | Resource Types::text::thesis::master thesis | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |