中国塑料 ›› 2025, Vol. 39 ›› Issue (5): 57-62.DOI: 10.19491/j.issn.1001-9278.2025.05.009

• 加工与应用 • 上一篇    下一篇

区域分割打印对FDM 3D打印件性能的影响

郭伟超(), 辛晓行, 曾山林, 高新勤, 汤奥斐   

  1. 西安理工大学机械与精密仪器工程学院,西安 710048
  • 收稿日期:2024-06-27 出版日期:2025-05-26 发布日期:2025-05-22
  • 作者简介:郭伟超(1981—),男,副教授,从事拓扑优化、先进制造技术研究,weichaoguo@xaut.edu.cn
  • 基金资助:
    榆林市科技计划项目(2023?CXY?206)

Effect of region segmentation printing on performance of FDM 3D printed parts

GUO Weichao(), XIN Xiaohang, ZENG Shanlin, GAO Xinqin, TANG Aofei   

  1. School of Mechanical and Precision Instrument Engineering,Xi′an University of Technology,Xi′an 710048,China
  • Received:2024-06-27 Online:2025-05-26 Published:2025-05-22

摘要:

在进行熔融沉积成型(FDM)3D打印时,首先,将打印模型的外轮廓与内部区域进行分割,打印模型的内外区域设置不同的层厚分别进行打印,其次,将打印模型的内部区域,根据打印件的应力分布情况进行区域分割,再根据各区域所受应力大小进行变密度填充。结果表明,采用所提的区域分割打印方法后,与普通打印方法相比,能够在保证打印件侧表面打印精度的同时,缩短打印时间至少40 %,降低上表面粗糙度25 %,提高了打印效率;打印件在受到相同外载时,打印件最大应力降低了至少10 %,最大位移减少了至少15 %,提高了打印件的力学性能。

关键词: 3D打印, 熔融沉积, 区域分割, 表面质量, 力学性能

Abstract:

During melt deposition molding (FDM) 3D printing, the outer outline of the printed model was firstly segmented from the inner region, and the inner and outer regions of the printed model were printed with different layer thicknesses. The inner region of the printed model was then segmented according to the stress distribution of the printed part. The variable density was filled according to the stress of each region. The results indicated that the proposed method could shorten the printing time by least 40% at least, reduce the surface roughness by 25%, and improve the printing efficiency. This ensures the printing accuracy of the side surface of the printed part. When the printed part was subjected to the same external load, the maximum stress of the printed part was reduced by 10% at least, their maximum displacement was reduced by 15% at least, and their mechanical properties were improved.

Key words: 3D printing, melt deposition, region segmentation, surface quality, mechanical property

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