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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Pioneers in Additive Manufacturing
Presentation Title A-98: Novel High Temperature Drop on Demand Liquid Metal-jetting for the Production of Complex 2D and 3D objects
Author(s) Marco Simonelli, Mark East, Nesma Aboulkhair, Richard Hague
On-Site Speaker (Planned) Marco Simonelli
Abstract Scope This research work presents a novel drop-on-demand (DoD) technology for the spatially controlled deposition of high-temperature droplets of molten metal for the production of 3D objects in both single and multiple high temperature metallic materials. The key aspects of the printing process will be presented. Firstly the authors will discuss the stability of the jetting of two example materials, namely tin and silver. It will then be shown that by jetting metal droplets on a movable substrate with 5micron positional accuracy, it is possible to realise accurate tin and silver 2D structures. The adhesion of the droplets on the target substrates (Cu and dielectric materials) and the drop-on-drop bonding of tin and silver will be then discussed. Finally, it will be shown that by printing multiple different layers, complex, low to medium volume 3D structures for a wide variety of applications can be created.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


3DP Retrospective: Do Inventors Know What They Are Doing?
A-94: 3D Additive Manufacturing of Metals at Micro/Nanoscale Using Localized Electrodeposition
A-95: Direct Metal Write Additive Manufacturing of Rare-earth Modified Aluminum Alloys Using Electromagnetic Heating Systems
A-96: FEM Modeling of Steel Additive Manufacturing Using Laser Hot-Wire Process
A-97: Microstructure Evolution and Galling Properties of Hard Facing Coatings Deposited Using Laser Directed Energy Deposition
A-98: Novel High Temperature Drop on Demand Liquid Metal-jetting for the Production of Complex 2D and 3D objects
A History of Additive Manufacturing
AFRL Contributions to Additive Manufacturing of Titanium, ca 2000
Assent and Decline of LOM Technology
Directed Light Fabrication: A Near-Net Shape Process using Laser Assisted Metal Deposition
Early Developments of AM within the UK
Laser Deposition of Metallic Powders
Laser Engineered Net Shaping - AM Metal Parts with Exceptional Material Properties
Making Things Bit-by-byte: Opportunity in a Fortuitous Convergence of Technologies
Pioneering International Consensus
Process Fundamentals for Selective Laser Melting: Power Ratio, Melting, Porosity, and Build Properties

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