| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Residual Stress Prediction in Metal Additive Manufacturing: Numerical Simulation and Experimental Validation |
| Author(s) |
Tao Wu, Thomas Niendorf |
| On-Site Speaker (Planned) |
Tao Wu |
| Abstract Scope |
In the metal additive manufacturing (AM), the induced large thermal gradients lead to the appearance of high residual stresses within manufactured components, which may result in part failure. In this work, a well-established thermal-mechanical model will be employed for predicting the residual stress profile in the components built by AM. Not only laser parameters and scanning strategy will be accounted for, but also other factors poorly investigated in the open literature such as the position on the base plate as well as the interactions among different parts in the build chamber. Parametric studies will be carried out for establishing a thorough understanding of the relation between the utilized process parameters and the induced residual stresses. Numerical results will be validated by reliable residual stress measurements through, e.g. deep-hole drilling and X-ray diffraction, accounting for the microstructural features of the additively manufactured metallic components characterized by anisotropy and strong texture. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |