Part geometry and conduction-based laser power control for powder bed fusion additive manufacturing
Laser powder bed fusion (LPBF) uses a focused, high power laser to repeatedly scan
geometric patterns on thin layers of metal powder, which build up to a final, solid three …
geometric patterns on thin layers of metal powder, which build up to a final, solid three …
A meltpool prediction based scan strategy for powder bed fusion additive manufacturing
In this study a feedforward control method for laser powder bed fusion additive
manufacturing is demonstrated. It minimizes the meltpool variation by updating the laser …
manufacturing is demonstrated. It minimizes the meltpool variation by updating the laser …
Thermal history and high-speed optical imaging of overhang structures during laser powder bed fusion: A computational and experimental analysis
Laser powder bed fusion (LPBF) is a powerful tool for additive manufacturing (AM) of metal
components. However, fabricating components with overhanging features using LPBF …
components. However, fabricating components with overhanging features using LPBF …
Laser powder bed fusion additive manufacturing of metals; physics, computational, and materials challenges
WE King, AT Anderson, RM Ferencz… - Applied Physics …, 2015 - pubs.aip.org
The production of metal parts via laser powder bed fusion additive manufacturing is growing
exponentially. However, the transition of this technology from production of prototypes to …
exponentially. However, the transition of this technology from production of prototypes to …
Model-based feedforward control of laser powder bed fusion additive manufacturing
Control of laser power to improve part quality is critical for fabrication of complex
components via Laser Powder Bed Fusion (LPBF) additive manufacturing (AM) processes. If …
components via Laser Powder Bed Fusion (LPBF) additive manufacturing (AM) processes. If …
Real-time process monitoring and closed-loop control on laser power via a customized laser powder bed fusion platform
Additive manufacturing (AM) is one of the most effective ways to fabricate parts with complex
geometries using various materials. However, AM also suffers from printing quality issues …
geometries using various materials. However, AM also suffers from printing quality issues …
In-situ characterization and quantification of melt pool variation under constant input energy density in laser powder bed fusion additive manufacturing process
Size and shape of a melt pool play a critical role in determining the microstructure in
additively manufactured metals. However, it is very challenging to directly characterize the …
additively manufactured metals. However, it is very challenging to directly characterize the …
A residual heat compensation based scan strategy for powder bed fusion additive manufacturing
Typical scan strategies for laser powder bed fusion (LPBF) additive manufacturing systems
apply a constant laser power and scan speed. Localized preheating from adjacent scan …
apply a constant laser power and scan speed. Localized preheating from adjacent scan …
Toward in-situ flaw detection in laser powder bed fusion additive manufacturing through layerwise imagery and machine learning
Process monitoring in additive manufacturing may allow components to be certified cheaply
and rapidly and opens the possibility of healing defects, if detected. Here, neural networks …
and rapidly and opens the possibility of healing defects, if detected. Here, neural networks …
[HTML][HTML] Processing parameters in laser powder bed fusion metal additive manufacturing
JP Oliveira, AD LaLonde, J Ma - Materials & Design, 2020 - Elsevier
As metallic additive manufacturing grew in sophistication, users have requested greater
control over the systems, namely the ability to fully change the process parameters. The goal …
control over the systems, namely the ability to fully change the process parameters. The goal …