About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Beyond the Beam III
|
Presentation Title |
Friction and Gravity Effects during Sintering of Binder Jet Parts |
Author(s) |
Basil J. Paudel, Albert To |
On-Site Speaker (Planned) |
Basil J. Paudel |
Abstract Scope |
During sintering of binder jet printed parts, distortion is seen with shrinkage values in the range of ~5-20%. External forces such as friction and gravity further contribute towards anisotropy in the deformation behavior. The geometry and complexity of the part combined with the sintering stress and high temperature creep makes prediction of the final part geometry more difficult, thus hindering its wide adoption in the industry. In the present study, a viscoplastic constitutive model is adopted to predict the distortion during sintering of the stainless steel 316L BJP parts. The effects of friction and gravity during high temperature sintering process are analyzed via numerical simulation of a unique test coupon. A model to predict coefficient of friction is proposed. Simulation results indicate close agreement against the experimental observation of friction induced distortion. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Modeling and Simulation, Other |