Advertisement
Published in:
2023 | OriginalPaper | Chapter
Use of Auxetic Infill Structures for the Compensation of Shrinkage in Fused Filament Fabrication Process
Authors : Rahman Uncu, Mehmet Canberk Bacikoglu, Burak Caliskan, Ulas Yaman
Published in: Flexible Automation and Intelligent Manufacturing: The Human-Data-Technology Nexus
Publisher: Springer International Publishing
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
The polymer parts fabricated by Fused Filament Fabrication (FFF) process deteriorated noticeably in terms of dimensional accuracy due to the thermal processes during the fabrication and cooling phases. Commonly, researchers tend to concentrate on modifying the CAD model or fabricating the parts larger than the nominal then post-processing the artifacts to compensate for shrinkage. This paper investigates the effects of auxetic infill structures on shrinkage compensation. Parts with different internal geometries and infill structures were designed and fabricated via FFF using polylactic acid material. Critical dimensions of these parts were measured on a Coordinate Measuring Machine to observe the effects of different infill patterns on the dimensional accuracy of the parts. Measurement results showed that using an auxetic infill pattern with a symmetrical layout improves the accuracy of the parts significantly.