Improving process stability of electron beam directed energy deposition by closed-loop control of molten pool

Z Liang, Z Liao, H Zhang, Z Li, L Wang, B Chang… - Additive …, 2023 - Elsevier
As regards wire-based additive manufacturing technologies, including electron beam
directed energy deposition (EB-DED), it is imperative to improve their process stability to …

A parameter self-tuning decoupling controller based on an improved ADRC for tension systems

G Ju, S Liu, K Wei, H Ding, C Wang - Applied Sciences, 2023 - mdpi.com
Aiming at the problems of strong coupling and time-varying parameters in the tension
systems of roll-to-roll coating machines, this paper outlines the design of a parameter self …

Web Wrinkle Defects due to Temperature Profile in Roll-to-Roll Manufacturing Systems

J Noh, M Jo, H Jeon, M Kim, J Jo, C Lee - Polymers, 2023 - mdpi.com
The roll-to-roll manufacturing system is extensively used for mass producing products made
of plastic, paper, and fabric in several traditional industries. When flexible substrates, also …

[HTML][HTML] Advanced taper tension profile for improved control performance in roll-to-roll winding processes

J Noh, M Jo, M Kim, C Lee - Alexandria Engineering Journal, 2024 - Elsevier
Products coated with flexible film can be stored in wound rolls after the winding process.
However, if the roll product experiences excessive internal stress, it can lead to various …

Enhancing Diagnosis of Rotating Elements in Roll-to-Roll Manufacturing Systems through Feature Selection Approach Considering Overlapping Data Density and …

H Lee, Y Lee, M Jo, S Nam, J Jo, C Lee - Sensors, 2023 - mdpi.com
Roll-to-roll manufacturing systems have been widely adopted for their cost-effectiveness,
eco-friendliness, and mass-production capabilities, utilizing thin and flexible substrates …

Industrial roll-to-roll printing register control using a pulse-width subdivision detection algorithm

B Liu, Y Chen, J Xie, B Chen - Applied Sciences, 2023 - mdpi.com
Featured Application The typical application of register control technology proposed in this
paper is the industrial gravure printing production line. It is also used in various other kinds …

In situ monitoring of beam current in electron beam directed energy deposition based on adsorbed electrons

Z Liang, H Zhang, Z Li, D Du… - Journal of Physics …, 2022 - iopscience.iop.org
Electron beam directed energy deposition (EB-DED) is a promising and efficient additive
manufacturing technology, but the vacuum environment challenges the in situ parameters …

The tension fluctuation and packaging quality control of nonwoven winding

Y Li, T Xia, L Li, H Wang, L Jian… - Journal of Engineered …, 2024 - journals.sagepub.com
In order to improve the package quality of nonwoven and reduce the defects in the
nonwoven production process, the tension fluctuation in the winding process is studied. A …

[HTML][HTML] Forced vibration and chaotic behavior of membrane under pretension

Y Feng, J Wu, X Wang - AIP Advances, 2022 - pubs.aip.org
In the process of transmission, the flexible membrane will be affected by the pretension of
the guide roller and the external excitation force of the conductive silver slurry ejected by the …