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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Multi-material Additive Manufacturing: Processing and Materials Design
Presentation Title Machine, Material, and Toolpath Design for High-throughput Extrusion Additive Manufacturing
Author(s) A. John Hart
On-Site Speaker (Planned) A. John Hart
Abstract Scope Extrusion is arguably the most versatile of the many additive manufacturing (AM) techniques, owing to its capability to be deployed at a wide range of length scales and with a wide variety of materials. However, the mutual constraints on machine and toolpath design present challenges to optimization of part design and material properties, and implementation of multi-material deposition. I will present our combined experimental and computational studies of the rate limits of extrusion AM, which have enabled a desktop system with ~10X greater throughput than commercial machines. This uses a screw-drive and laser-assisted heating mechanism to achieve high extrusion force and rapid heating, respectively. I will further discuss the use of this system to print a variety of fiber-filled thermoplastics. I will also introduce graph-based toolpath optimization algorithms that show promise to further accelerate throughput of vector-based AM techniques, and consider multi-objective constraints such as thermal deformation and residual stress.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


A Separable Support Strategy for 3D Printing of Complex Metal Parts
Additive Manufacturing of Inconel 718 – Ti6Al4V Bimetallic Structures Using LENS™
Additive Manufacturing of Periodic Metal-metal Composites
Additively Manufactured Functionally Graded Steels through a Novel Approach to Path Finding
Bimetallic Bonding via Two Methods of Direct Metal Deposition Additive Manufacturing
Design and Fabrication of Lightweight, Hierarchical Multi-material Composites with Tunable Thermal Mechanical Properties
Design and Optimization of Fiber Reinforced Polymers Enabled by Additive Manufacturing
Developing Functionally Graded Metals through Additive Manufacturing: Progress, Challenges, and Future Vision for a Unique Technology
Development of Novel Squeeze Cast High Tensile Strength Al-Si-Cu-Ni-Sr Alloys
Dynamic Microstructural Control in Printable Colloidal Structures via Acoustic Focusing
Experimental-computational Approach toward Design of Additively Manufactured Functionally Graded Metallic Materials
Extrusion of Direct-write Inks with Particle Gradients
Fabrication of WC-Co Metal Matrix Composites via Melt Infiltration Using Binder Jet Additive Manufacturing
Hybrid Manufacturing of Functionally Graded M300 and 316L Steels
Large-scale Additive Manufacture of MMC and Layered Multi-material Products
Liquid-solid Phase Metamaterials Fabricated by Two-photon Lithography
Meso-scale Design of Heterogeneous Material Systems in Multi-material Additive Manufacturing
Microstructure and Mechanical Properties of Additive Friction Stir Processed Dissimilar Metals
Multi-material Topology Optimization for 3D Printed Multi-functional Architected Materials and Components
Multi Phase Materials with Architectured Micro Scale Interfaces
Nanomechanical and EBSD Characterization of Thermo-mechanical Additive Manufactured Inconel 625
Novel High Temperature Drop on Demand Liquid Metal-jetting for the Production of Single and Multi-material 3D Objects
Hide details for [<a href="/PM/PM.nsf/ApprovedAbstracts/A5DAB4B0480A53518525815D0047C34F?OpenDocument">Processing of High MeltiProcessing of High Melting Temperature Polymer with Ceramic Particles as Processing Aid in Selective Laser Sintering
[Replication or Save Conflict]
Realizing Multi-functional Products via Multi-material Additive Manufacturing Processes
Strong and Robust Nanoarchitectures
Understanding and Predicting the Heterogeneous Local Ligament-level Deformation Response in Metal Lattice Structures

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