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

• Processing and Application • Previous Articles     Next Articles

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

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

CLC Number: