Defects and anomalies in powder bed fusion metal additive manufacturing
Metal additive manufacturing is a disruptive technology that is revolutionizing the
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …
In-situ monitoring of sub-surface and internal defects in additive manufacturing: A review
Abstract Additive Manufacturing (AM), or 3D printing, processes depend on a user-defined
set of optimized process parameters to create a component. Monitoring and control of AM …
set of optimized process parameters to create a component. Monitoring and control of AM …
Keyhole fluctuation and pore formation mechanisms during laser powder bed fusion additive manufacturing
Keyhole porosity is a key concern in laser powder-bed fusion (LPBF), potentially impacting
component fatigue life. However, some keyhole porosity formation mechanisms, eg, keyhole …
component fatigue life. However, some keyhole porosity formation mechanisms, eg, keyhole …
Critical instability at moving keyhole tip generates porosity in laser melting
Laser powder bed fusion is a dominant metal 3D printing technology. However, porosity
defects remain a challenge for fatigue-sensitive applications. Some porosity is associated …
defects remain a challenge for fatigue-sensitive applications. Some porosity is associated …
Dynamics of pore formation during laser powder bed fusion additive manufacturing
Laser powder bed fusion additive manufacturing is an emerging 3D printing technique for
the fabrication of advanced metal components. Widespread adoption of it and similar …
the fabrication of advanced metal components. Widespread adoption of it and similar …
Keyhole threshold and morphology in laser melting revealed by ultrahigh-speed x-ray imaging
We used ultrahigh-speed synchrotron x-ray imaging to quantify the phenomenon of vapor
depressions (also known as keyholes) during laser melting of metals as practiced in additive …
depressions (also known as keyholes) during laser melting of metals as practiced in additive …
In-situ measurement and monitoring methods for metal powder bed fusion: an updated review
The possibility of using a variety of sensor signals acquired during metal powder bed fusion
processes, to support part and process qualification and for the early detection of anomalies …
processes, to support part and process qualification and for the early detection of anomalies …
On the application of in-situ monitoring systems and machine learning algorithms for develo** quality assurance platforms in laser powder bed fusion: A review
Laser powder bed fusion (LPBF) is one class of metal additive manufacturing (AM) used to
fabricate high-quality complex-shape components. This technology has significantly …
fabricate high-quality complex-shape components. This technology has significantly …
In-situ experimental and high-fidelity modeling tools to advance understanding of metal additive manufacturing
Metal additive manufacturing has seen extensive research and rapidly growing applications
for its high precision, efficiency, flexibility, etc. However, the appealing advantages are still …
for its high precision, efficiency, flexibility, etc. However, the appealing advantages are still …
In-situ monitoring plume, spattering behavior and revealing their relationship with melt flow in laser powder bed fusion of nickel-based superalloy
Y Wang, W Guo, Y **e, H Li, C Zeng, M Xu… - Journal of Materials …, 2024 - Elsevier
Laser powder bed fusion (LPBF) is a highly dynamic and complex physical process, and
single-track defects tend to accumulate into non-negligible internal defects of parts. The …
single-track defects tend to accumulate into non-negligible internal defects of parts. The …