About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing Modeling, Simulation and Machine Learning
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Presentation Title |
High-fidelity Numerical Simulation of Droplet-Powder Bed Interactions in Binder Jet Additive Manufacturing. |
Author(s) |
Mohan Sai Ramalingam, Shashank Sharma, Chaithanya Kumar K N , Sameehan S Joshi, Narendra B Dahotre |
On-Site Speaker (Planned) |
Mohan Sai Ramalingam |
Abstract Scope |
The complex and distinct interaction behavior of the binder droplet with powder particles is a first step in determining the dimensional accuracy of green part fabricated using the Binder Jet Additive Manufacturing (BJAM) technique. The current study proposes the computational approach for simulating binder infiltration into the precursor powder bed and underlying physics involved in interaction between the powder particles and binder facilitating process optimization. A two-phase level set model was coupled with Navier-stokes equations to track the moving interface of immiscible liquid and air during the droplet-powder interaction. Vertical infiltration and lateral spreading are simulated to find out the effect of binder flow within the powder bed in terms of flow time and distance for varying particle size. Different regimes of binder- powder interactions are classified based on the dynamic driving force involved in facilitating the infiltration process. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, |