Data-fusion for in-situ monitoring and molten state identification during LPBF of NiCoCr medium-entropy alloy.

ABSTRACT: Laser powder bed fusion (LPBF) is an additive manufacturing technology with high practical value. In order to improve the quality of the fabricated parts, process monitoring has become a crucial solution, offering the potential to ensure manufacturing stability and repeatability. However, a cardinal challenge involves discerning a precise correlation between process characteristics and potential defects. This paper elucidates the integration of an off-axis vision monitoring mechanism via a high-speed camera focused on capturing the single-track melting phenomenon. An innovative image processing method was devised to segment the plume and spatters, while Kalman filter was employed for multi-object tracking of the spatters. The features of both the plume and spatters were extracted, and thei

SUBMITTER: Li H 

PROVIDER: S-EPMC11208593 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature