| Autor: |
Linke, Barbara S., Georgens, Alexander, Romero, Christopher, Garcia, Tanya C., Marcellin-Little, Denis J. |
| Zdroj: |
International Journal of Abrasive Technology; 2024, Vol. 12 Issue: 3 p236-260, 25p |
| Abstrakt: |
Polyetheretherketone (PEEK) can be processed with additive manufacturing, but post-processing is not well studied. This paper explores the grindability of extruded and 3D printed PEEK. Manual grinding was used because of its high relevance for finishing freeform parts. Grinding of extruded PEEK with a SiC belt with #400 grit size, a grinding speed of 3.6 or 5.6 m/s, and a target normal grinding force of 100 N achieved average surface roughness Ra from 0.93 to 0.99 μm. The study on grinding of 3D printed PEEK samples found appropriate parameters to achieve a low average surface roughness between Ra = 1 to 2 µm for 0° and 90° print angles (with a #400 SiC belt, 3.6 m/s grinding speed, and 75 N target normal grinding force). The 15° print angle sample suffered from surface delamination. This and further research improves post-processing repeatability and automation for 3D printed PEEK parts. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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