材料科学
复合材料
造型(装饰)
数字光处理
弯曲
图层(电子)
断裂(地质)
3D打印
抗弯强度
极限抗拉强度
脆性
表征(材料科学)
3d打印
光学
生物医学工程
纳米技术
医学
物理
投影机
作者
Ting Jiang,Bo Yan,Minzheng Jiang,Buguang Xu,Sheng Gao,Yi Xu,Yueqiang Yu,Tingang Ma,Tao Qin
出处
期刊:Materials
[MDPI AG]
日期:2023-05-19
卷期号:16 (10): 3847-3847
被引量:9
摘要
In order to explore the effect of printing parameter configurations on the forming performance of Digital Light Processing (DLP) 3D printed samples, printing experiments were carried out on the enhanced adhesion and efficient demolding of DLP 3D printing devices. The molding accuracy and mechanical properties of the printed samples with different thickness configurations were tested. The test results show that when the layer thickness increases from 0.02 mm to 0.22 mm, the dimensional accuracy in the X and Y directions increases first and then decreases, while the dimensional accuracy in the Z direction decreases, and the dimensional accuracy is the highest when the layer thickness is 0.1 mm. The mechanical properties of the samples decline with an increasing layer thickness of the samples. The mechanical properties of the 0.08 mm layer thickness are the best, and the tensile, bending, and impact properties are 22.86 Mpa, 48.4 Mpa, and 35.467 KJ/m2, respectively. Under the condition of ensuring molding accuracy, the optimal layer thickness of the printing device is determined to be 0.1 mm. The analysis of the section morphology of samples with different thicknesses illustrates that the fracture of the sample is a river-like brittle fracture, and there are no defects such as pores in the section of samples.
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