About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
|
Symposium
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Poster Session
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Presentation Title |
Scan-by-Scan Part-Scale Thermal Modelling for Defect Prediction in Metal Additive Manufacturing |
Author(s) |
Terrence P. Moran, Derek Warner, Nam Phan |
On-Site Speaker (Planned) |
Terrence P. Moran |
Abstract Scope |
A part-scale thermal modeling concept is implemented to predict thermal defect distributions in additively manufactured components. Utilizing the principle of superposition, the complete thermal history of part-scale builds can be simulated within the time frame required for real physical builds, without spatial or temporal coarsening. Demonstrating the concept on a real component with typical laser powder bed fusion parameters, the simulations show that in addition to power schedule, thermal defects depend on component geometry, scanning strategy, and heat accumulation. The features governing defect formation at the part-scale are analyzed, and a simple rule for predicting defect formation is presented. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |