N. Hussein, Gan Chin Ket, Toibah Abdul Rahim, M. N. Ayof, Muhammad Zaimi Zainal Abidin
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Process and Heat Resources for Wire Arc Additive Manufacturing of Aluminium Alloy ER4043: A Review
The application of wire arc additive manufacturing (WAAM) in manufacturing has raised interest among researchers. In this paper, the introduction of additive manufacturing and wire arc additive manufacturing, various heat resources for WAAM, aluminium alloys, aluminium alloys ER4043, and performance evaluation of WAAM of ER4043 have been discussed in detail based on bead geometry, microstructure, microhardness, and tensile properties as well as the building path strategies, problems, and future directions. Based on this review, aluminium alloy 4043 (ER4043) is an Al-Si alloy frequently employed as a filler wire because it has superior fluidity and significantly fewer flaws in additively built structures. Next, dwell time and cooling efficiency during the WAAM process significantly affect bead geometry. Besides, a finer microstructure can be obtained with a better cooling rate. However, a coarser microstructure is obtained along with the increased deposition height due to heat accumulation and low solidification rate. Heat input is identified as the main cause of porosity, and CMT with a lower heat input is preferable and outperformed GTAW and GMAW in terms of mechanical properties.
期刊介绍：
The Journal of Mechanical Engineering & Sciences "JMES" (ISSN (Print): 2289-4659; e-ISSN: 2231-8380) is an open access peer-review journal (Indexed by Emerging Source Citation Index (ESCI), WOS; SCOPUS Index (Elsevier); EBSCOhost; Index Copernicus; Ulrichsweb, DOAJ, Google Scholar) which publishes original and review articles that advance the understanding of both the fundamentals of engineering science and its application to the solution of challenges and problems in mechanical engineering systems, machines and components. It is particularly concerned with the demonstration of engineering science solutions to specific industrial problems. Original contributions providing insight into the use of analytical, computational modeling, structural mechanics, metal forming, behavior and application of advanced materials, impact mechanics, strain localization and other effects of nonlinearity, fluid mechanics, robotics, tribology, thermodynamics, and materials processing generally from the core of the journal contents are encouraged. Only original, innovative and novel papers will be considered for publication in the JMES. The authors are required to confirm that their paper has not been submitted to any other journal in English or any other language. The JMES welcome contributions from all who wishes to report on new developments and latest findings in mechanical engineering.
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