微纳增材制造微圆柱结构的形貌分析与工艺优化研究

doi:10.3901/JME.2023.01.286

机械工程学报 ›› 2023, Vol. 59 ›› Issue (1): 286-297.doi: 10.3901/JME.2023.01.286

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微纳增材制造微圆柱结构的形貌分析与工艺优化研究

陈玉田¹, 吴重军^1,2, 魏馨怡¹, 孟宪凯³, 刘杰⁴, 王琪冰²

1. 东华大学机械工程学院上海 201620;
2. 森赫电梯股份有限公司湖州 313009;
3. 江苏大学机械工程学院镇江 212013;
4. 普利生机电科技有限公司上海 201600

收稿日期:2022-03-22 修回日期:2022-10-11 出版日期:2023-01-05 发布日期:2023-03-30
通讯作者: 吴重军(通信作者),男,1988年出生,博士,副教授,硕士研究生导师。主要研究方向为精密制造技术、智能制造。E-mail:wcjunm@dhu.edu.cn
作者简介:陈玉田,男,1995年出生。主要研究方向为精密制造。E-mail:1823765202@qq.com
基金资助:
上海市自然科学基金资助项目（22ZR1402400）。

Morphology Analysis and Process Optimization of Micro-cylinder Structure in Micro-nano Additive Manufacturing

CHEN Yutian¹, WU Chongjun^1,2, WEI Xinyi¹, MENG Xiankai³, LIU Jie⁴, WANG Qibing²

1. College of Mechanical Engineering, Donghua University, Shanghai 201620;
2. Sicher Elevator Co., Ltd., Huzhou 313009;
3. College of Mechanical Engineering, Jiangsu University, Zhenjiang 212013;
4. Shanghai Prismlab Electromechanical Technology Co., Ltd., Shanghai 201600

Received:2022-03-22 Revised:2022-10-11 Online:2023-01-05 Published:2023-03-30

摘要/Abstract

摘要： 针对目前亚像素微扫描的LCD式光固化3D打印技术在微纳结构增材制造中存在的典型打印瑕疵，通过优化打印工艺和分析打印结构，以提高打印成型质量和生产效率。首先，通过对打印材料后处理工艺研究，设计单因素试验并打印平板模型，分析后固化时长对零件硬度、粗糙度及形貌影响规律。其次，结合打印工艺参数，设计正交试验并打印圆柱阵列模型，分析打印层厚、曝光时间、振动次数对微圆柱成型的影响规律。结果表明：后固化时间在5~10 min时，后固化效果最优，此时表面粗糙度Ra值约为29 nm，邵氏硬度在88 HD左右。打印工艺参数对微圆柱直径尺寸影响大小排序为：曝光时间>打印层厚>振动次数。在均衡打印质量和打印效率的前提下，打印参数优化后，打印直径50 μm，高度210 μm的微圆柱结构应采用打印层厚10 μm，曝光时间2 500 ms，振动次数64 x的打印工艺参数。

关键词: 光固化3D打印, 微纳增材, 后固化, 工艺参数

Abstract: In view of the typical printing defects existing in the micro-nano structure additive manufacturing of sub-pixel microscanning LCD photocuring 3D printing technology, it is devoted to optimize the printing process and analyzed the printing structure to improve the printing quality and production efficiency. Firstly, the post-treatment time is determined by designing the single factor test and printing model, and the influence of post-curing time on the hardness, roughness and morphology of parts is analyzed. Secondly, combined with the printing process parameters, the orthogonal test and printing cylinder array model are designed to analyze the influence of printing layer thickness, exposure time and vibration times on the forming of micro-cylinder. The results show that the best curing effect is obtained when the curing time is 5~10 min, and the surface roughness Ra is about 29 nm and shore hardness is about 88 HD. The influence order of printing process parameters on the diameter of micro-cylinder is exposure time, print layer thickness and number of vibrations. Under the premise of balanced printing quality and printing efficiency with optimized printing parameters, the micro cylinder with diameter of 50 μm and height of 210 μm can be well printed under the print layer thickness of 10 μm, the exposure time of 2 500 s and the number of vibrations is 64 x.

Key words: photocuring 3D printing, micro-nano additive manufacturing, post-curing, process parameter

中图分类号:

TG156

陈玉田, 吴重军, 魏馨怡, 孟宪凯, 刘杰, 王琪冰. 微纳增材制造微圆柱结构的形貌分析与工艺优化研究[J]. 机械工程学报, 2023, 59(1): 286-297.

CHEN Yutian, WU Chongjun, WEI Xinyi, MENG Xiankai, LIU Jie, WANG Qibing. Morphology Analysis and Process Optimization of Micro-cylinder Structure in Micro-nano Additive Manufacturing[J]. Journal of Mechanical Engineering, 2023, 59(1): 286-297.

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微纳增材制造微圆柱结构的形貌分析与工艺优化研究

Morphology Analysis and Process Optimization of Micro-cylinder Structure in Micro-nano Additive Manufacturing

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