期刊
CRYSTALS
卷 12, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/cryst12020277
关键词
micro-droplet; high-voltage electric field-driven jet; Taylor cone; micro-scale wax structure
资金
- National Natural Science Foundation of China [51305128, 52005059]
- Open Research Fund of State Key Laboratory of High-Performance Complex Manufacturing, Central South University [Kfkt2020-10]
- key scientific research projects of the colleges and universities of Henan province [18A4600050]
- Outstanding Young Backbone Teachers projects of Xuchang University
A novel high-resolution micro-scale 3D printing method using high-voltage electric field-driven jet deposition technology was proposed to fabricate wax micro-structures. The effects of various process parameters on the printing process were investigated, resulting in the successful fabrication of micro-scale wax structures with controlled size deviation. This research demonstrates the feasibility of using high-voltage electric field-driven jet deposition technology for micro-scale wax structure fabrication.
High-voltage electric field-driven jet deposition technology is a novel high resolution micro scale 3D printing method. In this paper, a novel micro 3D printing method is proposed to fabricate wax micro-structures. The mechanism of the Taylor cone generation and droplet eject deposition was analyzed, and a high-voltage electric field-driven jet printing experimental system was developed based on the principle of forming. The effects of process parameters, such as pulse voltages, gas pressures, pulse width, pulse frequency, and movement velocity, on wax printing were investigated. The experimental results show that the increasing of pulse width and duration of pulse high voltage increased at the same pulse frequency, resulting in the micro-droplet diameter being increased. The deposited droplet underwent a process of spreading, shrinking, and solidifying. The local remelting and bonding were acquired between the contact surfaces of the adjacent deposited droplets. According to the experiment results, a horizontal line and a vertical micro-column were fabricated by adjusting the process parameters; their size deviation was controlled within 2%. This research shows that it is feasible to fabricate the micro-scale wax structure using high-voltage electric field-driven jet deposition technology.
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