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A waveform design method for high DPI piezoelectric inkjet print-head based on numerical simulation

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Abstract

In order to increase the Dots Per Inch (DPI) of the piezoelectric inkjet print-head, the width and length of the pressure chamber have become much smaller. This makes some previous waveform design methods no longer suitable for the design of high DPI piezoelectric inkjet print-head. In this paper, a new waveform design method based on numerical simulation for high DPI print-head is proposed. Different parameters of the unipolar trapezoidal waveform were optimized using the multi-physics simulation software COMSOL to acquire the optimal waveform for good quality jetting. And meniscus motion at the nozzle exit was measured to predict the jetting behavior of print-head and verify the simulation results. When the high DPI print-head was actuated by the optimized waveform with the rising time t r  = 3 µs, dwelling time t d  = 16 µs, and falling time t f  = 3 µs, the high DPI piezoelectric inkjet print-head was continuous injection.

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Acknowledgements

This project is supported by Zhuhai Seine Technology Co., Ltd., P.R. China.

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Authors and Affiliations

  1. Key Laboratory for Micro/Nano Technology and Systems of Liaoning Province, Dalian University of Technology, Dalian, 116024, China

    Hongfang Wei, Xiaolei Xiao, Maocong Yi & Helin Zou

  2. School of Mechanical Science and Engineering, Jilin University, Changchun, 130012, China

    Zhifu Yin

  3. Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, 116024, People’s Republic of China

    Helin Zou

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  1. Hongfang Wei
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  2. Xiaolei Xiao
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  3. Zhifu Yin
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  4. Maocong Yi
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  5. Helin Zou
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Correspondence to Helin Zou.

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Wei, H., Xiao, X., Yin, Z. et al. A waveform design method for high DPI piezoelectric inkjet print-head based on numerical simulation. Microsyst Technol 23, 5365–5373 (2017). https://doi.org/10.1007/s00542-017-3301-4

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  • DOI: https://doi.org/10.1007/s00542-017-3301-4

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