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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Pioneers in Additive Manufacturing
Presentation Title Laser Deposition of Metallic Powders
Author(s) Brian Welk, Peter Collins, Rajarshi Banerjee, Hamish L Fraser
On-Site Speaker (Planned) Hamish L Fraser
Abstract Scope My introduction to additive manufacturing was in 1979 when employed at UTRC involving characterization of "layerglazed" Ni-base superalloys. After years of other research, I returned to additive manufacturing by purchasing the first commercial machine offered by the Optomec Company. This machine has been returned for updating on a number of occasions. This presentation will describe the trails and tribulations associated with additive manufacturing, and solutions developed during the early days of effort. In particular, our development of a combinatorial method for rapidly assessing alloy systems using samples with graded compositions produced using elemental powder blends in more than one powder hopper will be described. Examples of the use of this “metallurgical playpen” will be presented, focusing on our research in titanium alloys for, on the one hand, structural applications, and on the other, low modulus titanium for bio-medical applications.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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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