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Fabrication of Flexible Base Micro-pin Array and Wall Attachment Application

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International Journal of Precision Engineering and Manufacturing Aims and scope Submit manuscript

Abstract

Wall attachment mechanisms for robot have attracted great attention. In this study, we present a novel fabrication method for flexible micro-pin array adapting to various surface profiles. The fabrication process was composed of three steps. First, the stainless steel (AISI304) micro-pin array was fabricated by using laser beam machining. In this process, laser beam machining was adopted because it is valuable for machining stainless steel. Dross and recast layers that were generated during laser machining were used as a material of micro-pin. Second, to eliminate unnecessary area without micro-pin, electrochemical etching was carried out. In this step, paraffin wax was coated to protect micro-pin array. It was eliminated by using heat and ultrasonic wave vibration after finishing electrochemical etching. Lastly, Polydimethylsiloxane (PDMS) as a flexible base was formed to etched micro-pin array. As a result, flexible based micro-pin array was fabricated. To verify attachment application on the wall, interlocking force between flexible micro-pin array and curved rough surface was measured (39.71 mN).

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Acknowledgements

This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (No. 2019R1F1A1056012).

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  1. Department of Mechanical Design Engineering, Dongyang Mirae University, 445 Gyoungin-ro, Guro-gu, Seoul, 08221, Republic of Korea

    Jong Wuk Park

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  1. Jong Wuk Park
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Correspondence to Jong Wuk Park.

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Park, J.W. Fabrication of Flexible Base Micro-pin Array and Wall Attachment Application. Int. J. Precis. Eng. Manuf. 21, 787–795 (2020). https://doi.org/10.1007/s12541-019-00302-x

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  • DOI: https://doi.org/10.1007/s12541-019-00302-x

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