|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Quantifying Microstructure Heterogeneity for Qualification of Additively Manufactured Materials
||Effects of Laser Process Parameters on Denudation Zone Width in Laser Powder Bed Fusion Additive Manufacturing
||Mehdi Amiri, Eric J Payton
|On-Site Speaker (Planned)
Accurately modeling the physics of laser-powder interaction is needed for predicting the probabilities of performance-limiting defects in parts additively manufactured using laser powder bed fusion. We present a model for prediction of denudation width in laser powder bed fusion additive manufacturing process. The model relates the laser power and laser scan speed to the vapor jet speed and consequently to the inward entrainment gas velocity. The effects of laser power and laser speed on denudation width are investigated and compared with experimental data. The results show that for a given laser power the denudation width increases as the laser speed decreases.
||Additive Manufacturing, ICME, Modeling and Simulation