About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
Finite Element Analysis of Deposition Strategies in Dissimilar Metal Additive Manufacturing |
Author(s) |
Nishkarsh Srivastava, Amit Arora |
On-Site Speaker (Planned) |
Nishkarsh Srivastava |
Abstract Scope |
Hybrid components like Copper-clad SS316, which combine enhanced thermal conductivity and high strength, are gaining attention for their superior performance. However, cladding copper onto SS316 using laser-directed energy deposition (L-DED) poses challenges due to residual stress and distortion caused by differences in thermo-physical properties. A thermo-mechanical numerical model can help estimate these residual stresses. In this study, a coupled Finite Element Method (FEM) thermo-mechanical analysis was performed for depositing copper on SS316 steel. Six different scanning patterns were evaluated: raster, zig-zag, alternate line, out-in spiral, in-out spiral, and a novel S scan. The anisotropic heat transfer behavior during steel-copper deposition necessitates selecting scanning strategies that promote homogeneous thermal distribution by minimizing the number of deposited elements in contact for optimal heat transfer performance. The zig-zag scan path demonstrated lower residual stress and distortion, making it an ideal choice for cladding copper on steel. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, ICME |