Abstract
In the present paper, the process parameters of revolving tip-based machining were optimized for the fabrication of microchannel structures. It was found that in comparison with the micromilling process, the main factor affecting the surface quality of revolving tip-based machining originated from residual materials produced in each revolution. Three process parameters, including cutting depth, feeding rate, and tool path strategy, were studied experimentally to optimize the surface quality of the machined aluminum alloy and polymethylmethacrylate (PMMA). It was noticed that at smaller cutting depths (< 3 µm) and feeding rates (< 20 µm/s) with fixed revolving parameters (50 Hz frequency and 6 µm radius), microchannels with better bottom surfaces were formed. Two different types of tool path strategies were designed and compared to obtain the best surface quality (Sa) of aluminum alloy (21 nm) and PMMA (19 nm).
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Acknowledgements
The authors gratefully acknowledge the financial supports of the Foundation for the National Natural Science Foundation of China (51475108), Innovative Research Groups of the National Natural Science Foundation of China (51521003), Self-Planned Task (SKLRS201606B) of State Key Laboratory of Robotics and System (HIT), and the National Program for Support of Top-notch Young Professors.
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Xue, B., Geng, Y., Wang, D. et al. Improvement in Surface Quality of Microchannel Structures Fabricated by Revolving Tip-Based Machining. Nanomanuf Metrol 2, 26–35 (2019). https://doi.org/10.1007/s41871-018-0032-9
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DOI: https://doi.org/10.1007/s41871-018-0032-9