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Introduction to Precision Grinding and Injection Molding Micro/Nano Structures

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Fabrication of Micro/Nano Structures via Precision Machining

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Abstract

Microarray structures with high form accuracy and low surface roughness can be machined on the surface of polymer and high performance components including single crystal silicon carbide, ceramics and mold steel to produce new functional characteristics such as surface hydrophobicity and light efficiency enhancing. However, laser, etching, cutting and other methods are difficult to assure the 3D form accuracy and surface quality at micron scale. The technical bottleneck of micro-structure machining on the surface of hard and brittle materials is the truing and dressing of micro-tip of ultra-hard diamond grinding wheel. In consequence, a dry pulse discharge truing and dressing method of diamond grinding wheel is innovatively proposed. Firstly, the dry contact discharge dressing technology was used to dress the diamond grinding wheel into a V-shaped tip, and then the V-tip diamond grinding wheel was used to process smooth and regular micro-grooves or micro-pyramid array structures on the surface of hard and brittle materials such as ceramics, sapphire, single crystal silicon carbide or mold steel. After that the micro-structured mold steel mold core was precisely polished by water jet polishing technology to improve the surface quality. Finally, the micro-structure rapid prototyping of the mold core surface is copied to the polymer surface by micro injection molding technology, so that the mass production and manufacture of V-structured polymeric LED light guide plate can be realized.

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Acknowledgements

The work described in this chapter was supported by the National Natural Science Foundation of China (Grant No. 51805334), the International Science and Technology Cooperation Project of Shenzhen City (Grant No. GJHZ20190822091805371), and the Science and Technology Planning Project of Guangdong Province (Grant No. 2017A010102003).

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Authors and Affiliations

  1. Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, Nan-hai Ave 3688, Shenzhen, 518060, Guangdong, PR China

    Yanjun Lu, Yuming Huang & Jiangxiu Ouyang

Authors
  1. Yanjun Lu
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  2. Yuming Huang
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  3. Jiangxiu Ouyang
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Correspondence to Yanjun Lu .

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Editors and Affiliations

  1. College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, Guangdong, China

    Guoqing Zhang

  2. College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, Guangdong, China

    Bin Xu

  3. College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, Guangdong, China

    Yanjun Lu

  4. Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

    Suet To

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Lu, Y., Huang, Y., Ouyang, J. (2023). Introduction to Precision Grinding and Injection Molding Micro/Nano Structures. In: Zhang, G., Xu, B., Lu, Y., To, S. (eds) Fabrication of Micro/Nano Structures via Precision Machining. Springer, Singapore. https://doi.org/10.1007/978-981-99-1338-1_13

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  • DOI: https://doi.org/10.1007/978-981-99-1338-1_13

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-1337-4

  • Online ISBN: 978-981-99-1338-1

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