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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing: Qualification and Certification
Presentation Title Influence of Printing Parameters within the Binder-powder Interaction
Author(s) Trenton Colton, Nathan Crane
On-Site Speaker (Planned) Nathan Crane
Abstract Scope The understanding of binder-powder interaction is crucial to the advancement of several additive manufacturing processes (AM) most notably binder jetting. Attempts have been made to predict saturation levels of parts with simple calculations based on droplet primitives and/or capillary pressure. These methods have lacked clear predictive ability and neglect crucial aspects of printing parameters. The capability of AM to improve depends on this dynamic droplet/powder interaction as the interaction influences dimensional accuracy, print time, and green part strength. Understanding the underlying physics will decrease needed resources for new material implementation in binder jetting. This study reports on the impact of heating and drop velocity, spacing, and interarrival time on the effective binder saturation levels of lines, layers, and multilayer parts. The results show that velocity and droplet size have a strong impact on the effective saturation of a part. However, drying reduces sensitivity of the process to the process parameters.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comprehensive Digital Platform for Additive Manufacturing
A Multi-Sensor Comparative Study for Fatigue Prognosis of Additively Manufactured Metallic Specimens
Connecting Metal Powder Morphological Characteristics with Flowability Properties Using Machine Learning
CT Based Analysis of Generation and Characterization of Parameter- and Process-induced Defects in Powder Bed Fusion Additive Manufacturing
Effect of Sample Geometry and Orientation on Tensile Properties of Ti-6Al-4V Manufactured by Electron Beam Melting
Ensuring Build Quality thru Physics-based Support Design Optimization for Residual Stress
Influence of Printing Parameters within the Binder-powder Interaction
Introductory Comments: Additive Manufacturing: Qualification and Certification
Physics-based Qualification for Laser Powder Bed Fusion AM
Pore Formation in Laser Powder Bed Fusion Inconel 718 through Multiphysics Modeling
Post-build Heat Treatment of Wire-arc Additive Manufactured 410 SS for Hardness Tuning
Recyclability of Ti-6Al-4V Powders Used in Additive Manufacturing
Reducing Anisotropic Deformation of LPBF Inconel 718 for Applications in Extreme Conditions
Reducing Heat Buildup and Regularizing Melt Pool Dimensions in Laser Powder Bed Fusion through a “Powder Moat” Scan Strategy
Similarity Analysis and Clustering of Thermal History to Understand Process-structure Relationships
Simulation of the Effect of Texture on Anisotropy in SLM-Produced IN718 Microstructures
The Effects of Powder Particle Size Distribution on the Powder and Part Performance of Laser Powder Bed Fusion 17-4 PH Stainless Steel
Unveiling the Relationships between Powder Bed Conditions and Materials Quality during Selective Laser Melting

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