The relationship between the fusion temperature and dimensional accuracy of 3D printed parts

Year 2020, Volume: 38 Issue: 1, 21 - 28, 27.03.2020

Pinar Demırcıoglu Ismail Bogrekcı Saygin Sucuoglu Emrah Guven

Abstract

The aim of this study is to investigate the relationship between the fusion temperature and dimensional accuracy of the 3D printed components. The Computer Aided Design (CAD) model of specimens were prepared using Autodesk Inventor Software. Then the models were exported to STL file format for rapid prototyping. Prusa İ3 desktop type 3D printer with 90-300 microns layer height manufacturing capacity was used to produce the samples. The printer settings were prepared with Simplified3D software. Infill density and layer height of specimens were determined as 20% and 200 microns, respectively. The heated bed temperature was selected as 60 °C to increase the bonding and surface quality. The specimens were produced as sphere with the diameter of 10 mm. The samples were manufactured with five different extruder temperatures (185, 195, 205, 215, and 220 °C) that directly affect the fusing temperature and process. Three samples spheres were produced for each fusion temperature. After the design and manufacturing processes the dimensions of produced samples were measured with image processing techniques. The obtained results were compared with each other to find the relationship between the dimensional accuracy and fusion temperatures. The results showed that the minimum dimensional error was obtained from the fusion temperature of 185 °C with the value of 0.290797 mm and percentage of 3%.

Keywords

Bonding and surface quality, coordinate measurement machine, dimensional accuracy, fusion temperature, image processing.

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