The metallurgy and processing science of metal additive manufacturing. (3rd July 2016)

• Record Type: Journal Article
• Authors: Sames, W. J.; List, F. A.; Pannala, S.; Dehoff, R. R.; Babu, S. S.
• Is Part Of: International materials reviews. Volume 61:Number 5(2016)
• Page Start: 315
• Page End: 360
• Publication Date: 2016-07-03
• Subjects: Advanced manufacturing -- Additive manufacturing review -- 3D printing -- Metallurgy; Materials science -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemical engineering -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/09506608.2015.1116649
• Languages: English
• ISSNs: 0950-6608

Abstract

Abstract : Additive manufacturing (AM), widely known as 3D printing, is a method of manufacturing that forms parts from powder, wire or sheets in a process that proceeds layer by layer. Many techniques (using many different names) have been developed to accomplish this via melting or solid-state joining. In this review, these techniques for producing metal parts are explored, with a focus on the science of metal AM: processing defects, heat transfer, solidification, solid-state precipitation, mechanical properties and post-processing metallurgy. The various metal AM techniques are compared, with analysis of the strengths and limitations of each. Only a few alloys have been developed for commercial production, but recent efforts are presented as a path for the ongoing development of new materials for AM processes.