高速连续光固化3D打印工艺与树脂打印件性能研究

doi:10.3901/JME.2021.15.255

机械工程学报 ›› 2021, Vol. 57 ›› Issue (15): 255-263.doi: 10.3901/JME.2021.15.255

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高速连续光固化3D打印工艺与树脂打印件性能研究

叶淑源, 周习远, 苑景坤, 劳长石, 陈张伟

深圳大学增材制造研究所深圳 518060

收稿日期:2020-08-09 修回日期:2021-03-11 出版日期:2021-08-05 发布日期:2021-11-03
通讯作者: 陈张伟(通信作者),男,1985年出生,博士,教授。主要研究方向为增材制造。E-mail:chen@szu.edu.cn
作者简介:叶淑源,男,1995年出生。主要研究方向为高速光固化增材制造。E-mail:1810293031@email.szu.edu.cn;周习远,男,1995年出生,硕士研究生。主要研究方向为高速光固化增材制造。E-mail:gmasonzhou@gmail.com;劳长石,男,1979年出生,博士,教授。主要研究方向为增材制造。E-mail:cslao@szu.edu.cn
基金资助:
广东省激光与增材制造重大专项（2020B090924003）、广东省自然科学基金面上（2020A1515011549）和深圳市基础研究（JCYJ20190808144009478）资助项目。

Study on High-speed Continuous Photopolymerization 3D Printing Process and Properties of Printed Resin Parts

YE Shuyuan, ZHOU Xiyuan, YUAN Jingkun, LAO Changshi, CHEN Zhangwei

Additive Manufacturing Institute, Shenzhen University, Shenzhen 518060

Received:2020-08-09 Revised:2021-03-11 Online:2021-08-05 Published:2021-11-03

摘要/Abstract

摘要： 受传统光固化工艺的分层打印原理的限制，液态树脂光固化3D打印的打印速度与打印质量一直无法获得突破。连续液面成型3D打印技术（CLIP）在一定程度上避免了物理分层的存在，进而可以缓解传统光固化打印过程中打印速度与打印质量相互制约，不能两全的问题，为高速高精度高质量树脂增材制造提供可能。详细研究了在高速打印模式下（300～1 500 mm/h） CLIP 3D打印工艺与打印速度对打印件质量的影响规律，并分析讨论了树脂黏度对CLIP打印速度和打印件质量的影响。结果表明：受树脂黏度影响，在高速打印模式下随着打印速度的不断增加，无层打印又逐渐向分层打印转变，打印件的性能也因此受到影响。较低速度的连续打印不仅能够获得较优的表面质量（S_a=1.98 μm），同时还能够获得较高的拉伸强度（45.6 MPa），且结果均优于DLP打印。

关键词: 光固化, 高速连续打印, 树脂, 黏度, 打印件性能

Abstract: Limited by the layered printing principle of traditional stereolithography process, the printing speed and printing quality of liquid resin stereolithography 3D printing have been unable to get a breakthrough. Continuous liquid interface production 3D printing technology (CLIP) avoids the existence of physical layer of the printing parts to some extent, which can alleviate the trade-off between printing speed and printing quality in the traditional stereolithography 3D printing process,thus providing the possibility for resin additive manufacturing of high speed, high precision and high quality.In this paper, the 3D printing process and the influence of printing speed on the quality of the printing parts of CLIP in high-speed printing mode (300-1 500 mm/h) are studied in detail. The results show that under the influence of resin viscosity, the layerless printing gradually changes to the layered printing with the increase of printing speed in the high-speed printing mode, and the performance of the printing part is also affected. Ordinary resin can not only obtain the best surface quality (Sa=1.98 μm), but also obtain the best tensile strength(45.6 MPa) at a relatively low print speed, and the results are better than DLP printing.

Key words: photopolymerization, high-speed continuous 3D printing, resin, viscosity, properties of printed parts

中图分类号:

TH164

叶淑源, 周习远, 苑景坤, 劳长石, 陈张伟. 高速连续光固化3D打印工艺与树脂打印件性能研究[J]. 机械工程学报, 2021, 57(15): 255-263.

YE Shuyuan, ZHOU Xiyuan, YUAN Jingkun, LAO Changshi, CHEN Zhangwei. Study on High-speed Continuous Photopolymerization 3D Printing Process and Properties of Printed Resin Parts[J]. Journal of Mechanical Engineering, 2021, 57(15): 255-263.

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高速连续光固化3D打印工艺与树脂打印件性能研究

Study on High-speed Continuous Photopolymerization 3D Printing Process and Properties of Printed Resin Parts

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