The principle and physical models of novel jetting dispenser with giant magnetostrictive and a magnifier

In order to develop jetting technologies of glue in LED and microelectronics packaging, giant-magnetostrictive-material (GMM) is firstly applied to increase jetting response and a new magnifying device including a lever and a flexible hinge is designed to improve jetting characteristics. Physical mo...

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Bibliographic Details
Published in:Scientific reports 2015-12, Vol.5 (1), p.18294-18294, Article 18294
Main Authors: Zhou, C., Li, J.H., Duan, J.A., Deng, G.L.
Format: Article
Language:English
Subjects:
639/166/988
639/766/25
Humanities and Social Sciences
Mathematical models
multidisciplinary
Printing machinery
Science
Velocity
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Summary:In order to develop jetting technologies of glue in LED and microelectronics packaging, giant-magnetostrictive-material (GMM) is firstly applied to increase jetting response and a new magnifying device including a lever and a flexible hinge is designed to improve jetting characteristics. Physical models of the jetting system are derived from the magnifying structure and working principle, which involves circuit model, electro-magneto-displacement model, dynamic model and fluid-solid coupling model. The system model is established by combining mathematical models with Matlab-Simulink. The effectiveness of the GMM-based dispenser is confirmed by simulation and experiments. The jetting frequency significantly increases to 250 Hz and dynamic behaviors jetting needle are evaluated that the velocity and displacement of the jetting needle reaches to 320 mm•s-1 and 0.11 mm respectively. With the increasing of the filling pressure or the amplitude of the current, the dot size will become larger. The dot size and working frequency can be easily adjusted.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep18294