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Wire + Arc Additive Manufacturing of Metals: State of the Art and Challenges
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Author(s): Krishna Kishore Mugada (Indian Institute of Technology, Delhi, India), Aravindan Sivanandam (Indian Institute of Technology, Delhi, India)and Ravi Kumar Digavalli (Indian Institute of Technology, Delhi, India)
Copyright: 2020
Pages: 21
Source title:
Additive Manufacturing Applications for Metals and Composites
Source Author(s)/Editor(s): K.R. Balasubramanian (National Institute of Technology, Tiruchirappalli, India)and V. Senthilkumar (National Institute of Technology, Trichy, India)
DOI: 10.4018/978-1-7998-4054-1.ch006
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Abstract
Wire + Arc additive manufacturing (WAAM) processes have become popular because of their proven capabilities to produce large metallic components with high deposition rates (promoted by arc-based processes) compared to conventional additive manufacturing processes such as powder bed fusion, binder jetting, direct energy deposition, etc. The applications of WAAM processes were constantly increasing in the manufacturing sector, which necessitates an understanding of the process capability to various metals. This chapter outlines the significant outcomes of the WAAM process for most of the engineering metals in terms of microstructure and mechanical properties. Discussion on various defects associated with the processed components is also presented. Potential application of WAAM for different metals such as aluminum and its alloys, titanium, and steels was discussed. The research indicates that the components manufactured by the WAAM process have significant microstructural changes and improved mechanical properties.
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