Iterative simulation-based techniques for control of laser powder bed fusion additive manufacturing
One of the challenges for process control of laser powder bed fusion additive manufacturing
lies in thermal control. Excessively low laser power may lead to incomplete melting, while …
lies in thermal control. Excessively low laser power may lead to incomplete melting, while …
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 …
[PDF][PDF] On the requirements for model-based thermal control of melt pool geometry in laser powder bed fusion additive manufacturing
As additive manufacturing processes mature, process control is increasingly sought after as
a means for improved quality. Accurate and responsive control of melt pool geometry in …
a means for improved quality. Accurate and responsive control of melt pool geometry in …
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 …
An efficient track-scale model for laser powder bed fusion additive manufacturing: Part 1-thermal model
This is the first of two manuscripts that presents a computationally efficient full field
deterministic model for laser powder bed fusion (LPBF). A new Hybrid Line (HL) heat input …
deterministic model for laser powder bed fusion (LPBF). A new Hybrid Line (HL) heat input …
An optimized scanning strategy to mitigate excessive heat accumulation caused by short scanning lines in laser powder bed fusion process
During laser powder bed fusion (LPBF) additive manufacturing of components with complex
geometries, short scanning lines easily induce localized excessive heat accumulation …
geometries, short scanning lines easily induce localized excessive heat accumulation …
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 …
Avoiding heat source calibration for finite element modeling of the laser powder bed fusion process
The melt pool characteristics govern process stability and microstructure development
during Laser Powder Bed Fusion (LBPF). The melt pool is strongly affected by the laser …
during Laser Powder Bed Fusion (LBPF). The melt pool is strongly affected by the laser …
Feedback control of melt pool area in selective laser melting additive manufacturing process
Selective laser melting (SLM), a metal powder fusion additive manufacturing process, has
the potential to manufacture complex components for aerospace and biomedical implants …
the potential to manufacture complex components for aerospace and biomedical implants …