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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing: Beyond the Beam II
Presentation Title Complex Material Deformation and Flow Phenomena during Additive Friction Stir Deposition of Dissimilar Aluminum Alloys
Author(s) Mackenzie E.J. Perry, Hunter Rauch, Robert J Griffiths, Jennifer Sietins, Yunhui Zhu, David Garcia, Hang Yu
On-Site Speaker (Planned) Mackenzie E.J. Perry
Abstract Scope Additive friction stir deposition (AFSD) is an innovative metal additive manufacturing technology based on high-temperature severe plastic deformation that enables solid-state deposition. By simultaneous rotation and compression of the feed material through a tool, large-scale parts are deposited with strong interface bonding, no detectable porosity, and an isotropic, fine grained microstructure. A fundamental understanding of the complex material deformation and flow phenomena during AFSD is essential to further optimize this process. In this work, experiments using hybrid feed-rods composed of tracers and matrix are used to explore the material flow within the deposition zone. X-ray computed tomography and electron backscatter diffraction show the complex 3-D shape of the deposited material and the microstructure evolution. Tracer cores show that the material flow path is dependent on placement within the feed-rod and processing parameters. The shape change between neighboring tracer segments reveals the first estimation of strain and strain rate in AFSD.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Look into Solid-state Metal AM Techniques from Metallurgical Bonding Perspective
Aluminum Alloy Powders for Solid State Additive Manufacturing Processing
Beyond the Beam Additive Manufacturing of Titanium Alloys
Bi-metal Composite Material for Plastic Injection Molding Tooling Applications via Fused Filament Fabrication Process
Cold Spray Processing of Soft Metals and Hard Tool Steels
Complex Material Deformation and Flow Phenomena during Additive Friction Stir Deposition of Dissimilar Aluminum Alloys
Control of High-temperature Drop-on-demand Metal Jetting Through Numerical Modelling and Experimentation
Development, Characterization, and Modeling of a 3D Binder-jet Printed N95 Metal Filter for COVID-19
Direct Ink Writing of Ceramic Architected Materials
Distortion Modeling of Sintering Process in Binder Jet Printed Parts
Droplet Powder Interactions in Binder Jet Additive Manufacturing
Effect of Processing Defects on Properties of Binderjet WC-Co
Fluid and Particle Dynamics Simulation in Binder Jetting Process
Friction Stir Additive Manufacturing of Al 6061-T6: Modeling and Experimental Analysis
Gravity Influence on Sintering of Binder Jetted Components
Heat Treatment of Recycled Battlefield Stainless-Steel Scrap for Cold Spray Applications
In Situ Monitoring of Additive Friction Stir Deposition: An Overview
Introductory Comments: Additive Manufacturing: Beyond the Beam II
Linear Friction Welding: a Solid-state Joining Process for the Manufacturing of Aerospace Titanium Parts
Spatial Architecture of Copper Fillers in Additively Manufactured PLA-matrix Composite
Texture Development and Influence in Solid-state Additive Manufacturing
Understanding the Effects of Repeated Environmental Exposure on Powder Properties for Additive Manufacturing Applications
Wall Thickness Effects on Dimensional Variation, Microstructure, and Mechanical Properties in Stainless Steel Samples Manufactured Using a Bound Metal Deposition (BMD) Sintering Process

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