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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Multi-material Additive Manufacturing: Processing and Materials Design
Sponsorship TMS: Additive Manufacturing Committee
Organizer(s) Hang Yu, Virginia Polytechnic Institute and State University
Nanci Hardwick, Aeroprobe Corporation
Steven Boles, Hong Kong Polytechnic University
Blake Barnett, Army Research Laboratory
Michael Gibson, Desktop Metal
Scope This symposium aims to provide a forum for the dissemination and discussion of state-of-the-art of multi-material additive manufacturing. Using various processes, 3D objects with locally controlled composition, microstructure and properties can be fabricated. Examples include functionally graded parts with designed composition profiles, printed multi-functional assemblies, and composites with sharp, designed property gradients. This capability unlocks a new space for design and fabrication of a wide variety of objects in which the meso-scale materials distribution and the shape of the 3D objects can be simultaneously controlled. In structural and thermal applications, the stress and thermal fields are often highly non-uniform; control of the materials distribution through multi-material additive manufacturing enables locating different properties at different positions for the optimum overall performance of a 3D object. Multi-material additive manufacturing may also enable fabrication of objects with designed internal architectures to implement unprecedented functionalities.

New challenges arise in multi-material additive manufacturing as compared to single material additive manufacturing. In processing, for example, sharp compositional gradients are sometimes desired in design; understanding material incompatibilities across such sharp interfaces, and the degree to which such gradients can be maintained in the end-product is crucial. In design, robust methodologies are needed to determine the optimal materials distribution for given manufacturing constraints and for specific mechanical, thermal, or multi-physics applications. In implementation, the designed gradients must be incorporated into 3D modelling packages so that parts can actually be made. This symposium will serve as a venue for the government, academic, and industrial professionals to share ideas, address fundamental challenges, and define future trends in multi-material additive manufacturing. Both experimental work on multi-material additive manufacturing systems and measurements and theoretical work on computational design and optimization are welcome to provide new physical insights and promote this sub-field of additive manufacturing. All types of materials are of interest, from metals, ceramics, and composites to polymers and bio-materials.

Research areas of particular interests include, but are not limited to:
1. Emerging technologies for multi-material additive manufacturing.
2. Processing challenges and solutions in multi-material additive manufacturing, e.g. control of the local composition, stress concentrations at interfaces, reactions across adjacent layers, residual stresses and thermal stresses.
3. New materials, structures, and functions enabled by multi-material additive manufacturing.
4. Design and optimization for materials distribution and manufacturing strategy in multi-material additive manufacturing.
Abstracts Due 07/16/2017
Proceedings Plan 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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