A Critical Review on Recent Research Methodologies in Additive Manufacturing. (2017)

• Record Type: Journal Article
• Authors: Srinivas, M.; Babu, B. Sridhar
• Is Part Of: Materials today. Volume 4:Number 8(2017)
• Page Start: 9049
• Page End: 9059
• Publication Date: 2017
• Subjects: Additive manufacturing -- Laser and electron-beam melting processes -- Direct Laser Deposition -- Electron beam welding -- Laser melting process -- Residual stress reduction; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.07.258
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: In view of the significant increase in research activity and publications in additive manufacturing in the last few years, the present article is an attempt to identify and highlight the topics that are most relevant to additive manufacturing systems and review representative journal publications that are related to these topics. A critical review of the reported studies in the area of titanium and aluminium alloys along with Fe-Al intermetallics in temperature distribution and melt geometry in various melting processes, Laser Deposition for additive manufacturing, selective laser melting process, in-situ alloy formation and residual stress reduction, Weak support material techniques, wire-arc additive manufacturing process, control of remelting in high-energy beam additive manufacturing, Evaluations of effective thermal conductivity of support structures in selective laser melting, Crack propagation and fracture toughness behaviours, Effects of build orientation and heat treatment on the microstructure and mechanical properties, Flexural properties, mechanical properties, High Speed Sintering, Thermal behaviour, Light curing strategies and with an emphasis on the recent works published since last two years. Because of the extensive growth in the body of knowledge in additive manufacturing in the past years, The review is limited to a manageable level by concentrating on temperature & thermal distribution, thermal conductivity, residual stress reduction, Metallurgy of additive manufacturing, Crack propagation and fracture toughness. This review is intended to provide a feel for the variety of studies and applications related to additive manufacturing. An effort has been made here, to include all the important contributions in the current area of interest. The critical areas regarding future research needs for the successful implementation of additive manufacturing in design are outlined in the conclusion.