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Appl. Sci. 2018, 8(2), 243; https://doi.org/10.3390/app8020243

Identification of Operating Parameters Most Strongly Influencing the Jetting Performance in a Piezoelectric Actuator-Driven Dispenser

1
Department of Mechanical Design Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Korea
2
Department of Mechanical Engineering, Inha University, Incheon 22212, Korea
*
Author to whom correspondence should be addressed.
Received: 12 December 2017 / Revised: 25 January 2018 / Accepted: 30 January 2018 / Published: 5 February 2018
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Abstract

This work identifies crucial operating parameters which most significantly influence the jetting performances of piezostack-driven non-contact dispensers. This is achieved through experimental investigation and statistical analysis. After introducing the configuration and operating principle of the piezoelectric jetting dispenser, an experimental setup is constructed in order to test the jetting performance, such as the dispensed amount. After selecting four significant operating parameters for the light-emitting diode (LED)-packaging process, two levels for each parameter are considered. Subsequently, the weight of a single dispensed dot is measured 100 times, and the average weight and standard deviation are calculated for each experimental set. The results are then statistically analyzed using a commercial software package. Finally, the crucial operating parameters which provide a low average weight and a minimum variation in the weight of a single dispensed dot are identified. View Full-Text
Keywords: jetting dispenser; piezoelectric actuator; operating parameters; jetting performance; experimental design set; statistical analysis jetting dispenser; piezoelectric actuator; operating parameters; jetting performance; experimental design set; statistical analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Sohn, J.W.; Choi, S.-B. Identification of Operating Parameters Most Strongly Influencing the Jetting Performance in a Piezoelectric Actuator-Driven Dispenser. Appl. Sci. 2018, 8, 243.

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