Additive Manufacturing Technologies

Abstract

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Cold Spraying of Armstrong Process Titanium Powder for Additive Manufacturing

“…Near-net-shape components using additive manufacturing (AM or 3D printing) and powder metallurgy (PM) methods have recently been used to alleviate some of these cost problems (Ref [1][2][3]. AM of metals can be separated into two broad categories: indirect methods, where a binder is used to bond the metal particles and post-processing is used to remove the binder and consolidate the part, and direct methods, where the final part is created directly without a binder (Ref 4).…”

“…AM of metals can be separated into two broad categories: indirect methods, where a binder is used to bond the metal particles and post-processing is used to remove the binder and consolidate the part, and direct methods, where the final part is created directly without a binder (Ref 4). It is possible to fabricate intricate parts with good surface finishes with processes such as electron beam melting (EBM) (Ref [3][4][5]; however, this process is currently limited by a manufacturing rate of 6 g/ min at the very high end for titanium [modified from (Ref 6, 7) using a density of titanium of 4.51 g/cm 2 ( Ref 1)]. This deposition rate leaves much room for improvement.…”

Investigation of design for additive manufacturing in professional design practice

“…In the last two years, there have been three review papers seeking to explore this topic and collate findings in this emerging field (Gibson et al 2015;Kumke, Watschke, and Vietor 2016;. Gibson et al (2015) reviewed the recent advances in DfAM and identified the advantages of AM in producing complex geometry, integrated assemblies, customised geometry, multi-functional products and lightweight structures.…”

“…Gibson et al (2015) reviewed the recent advances in DfAM and identified the advantages of AM in producing complex geometry, integrated assemblies, customised geometry, multi-functional products and lightweight structures. presented a systematic review of literature on DfAM.…”

Low Cost Printer for DLP Stereolithography

“…Several other terms are, or used to be, in use as well: automated fabrication, freeform fabrication or solid freeform fabrication, layer-based manufacturing, stereo li thography or 3D printing [1]. There are numerous ways to classify AM technologies, but recently accepted ISO/ASTM 52900 standard [2] classifies AM processes regarding type of material, principle applied for fusion or bonding, feedstock that is used for adding the material and machine architecture, i.e.…”