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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Advances in Environmental Technologies: Recycling and Sustainability Joint Session
Presentation Title Environmental Implications of Laser Metal Deposition: The Role of Feedstock Powder and Material Utilization Fraction
Author(s) Kaka Ma, Julie M Schoenung
On-Site Speaker (Planned) Kaka Ma
Abstract Scope Metal additive manufacturing (AM) has emerged as a new sustainable metallurgical processing technique attributed to its capability of creating near-net shapes in a single-step, reducing the need for machining. More than 80% of the feedstock, however, does not go into the final metal part and becomes waste powder. The present work aims to evaluate the environmental implications of laser assisted direct metal deposition, a representative category of AM techniques, paying particular attention to the impact of producing feedstock powder and the actual material utilization fraction. A model taking into account a weighting factor to incorporate the environmental impact of the waste powder was applied to evaluate material/energy consumption. Results indicate that recycling the waste powder is important to improve the environmental sustainability of laser metal deposition. To explore the potential to reuse the waste powder for subsequent deposition, waste powder was collected for microstructural characterization.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Low Temperature Procedure for the Delamination of Brominated Epoxy Resin of Waste Printed Circuit Boards
Accelerating Life-cycle Management Protocols for New Generation Batteries
Addressing Criticality in Rare Earth Elements through Strategic Recycling
Characteristics of Municipal Solid Waste Incineration Bottom Ash with Particulate Matters PM2.5 ~PM10
D-4: Chronopotentiometry Applied to the Determination of Copper Transport Properties through a Cation-exchange Membrane
D-5: Effect of Flow Rate on Metals Adsorption of Synthetic Solution Using Chelating Resin Dowex XUS43605 in Column Experiments
D-6: Evaluation of the Silver Recovery from Solid Industrial Wastes in an Electrochemical Reactor
D-7: Preparation of Core-shell Fe3O4@SiO2 Nanoparticles from Iron Tailing via Chemical Co-precipitation Method
D-8: Recycling of Worn Lithium Ion Batteries through a Process of Co-grinding with PVC
D-9: Chemical Reduction of Fe(III) in Nickel Lateritic Wastewater to Recover Metals by Ion Exchange
Development of a Separation Process of NBR/ HNBR Rubber from Metal Substrate
Development of Open Source Software Tool for Life Cycle Assessment of Rare Earth Elements Production
Environmental Implications of Laser Metal Deposition: The Role of Feedstock Powder and Material Utilization Fraction
Fabrication of Aluminum Foam from Aluminum Scrap
Recovery of Aluminum from the Secondary Aluminum Production Dust
Recovery of Electrolytic Zinc from Aqueous Wastes: An Approach to the Industry of Hot Dip Galvanized
Recovery of Metals and Nonmetals from Waste Printed Circuit Boards (PCBs) by Physical Recycling Techniques
Scoping the Potential of Coal Ash as a Source of Rare Earth Elements
Understanding Scrap Recycling and the Potential of Hand-held Elemental Analyzers

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