Abstract
Functionally Graded Materials represent the next generation of engineering design for metal and plastic components. In this research, a specifically modified and optimised 3D printer was used to manufacture functionally graded polyether ether ketone components. This paper details the design and manufacturing methodologies used in the development of a polyether ether ketone printer capable of producing functionally graded materials through the manipulation of microstructure. The interaction of individually deposited beads of material during the printing process was investigated using scanning electron microscopy, to observe and quantify the porosity levels and interlayer bonding strength, which affects the quality of the final parts. Specimens were produced under varying process conditions and tested to characterise the influence of the process conditions on the resulting material properties. The specimens printed at high enclosure temperatures exhibited greater strength than parts printed without the active addition of heat, due to improved bond formation between individual layers of the print and a large degree of crystallinity through maintenance at these elevated temperatures.
| Original language | English |
|---|---|
| Article number | 2992 |
| Number of pages | 2992 |
| Journal | Polymers |
| Volume | 15 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 1 Jul 2023 |
Keywords
- 3D printing
- PEEK
- additive manufacturing
- functional graded materials
- fused deposition modelling
- material extrusion
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- McNiffe, Eric and Ritter, Tobias and Higgins, Tom and Sam-Daliri, Omid and Flanagan, Tomas and Walls, Michael and Ghabezi, Pouyan and Finnegan, William and Mitchell, Sinéad and Harrison, Noel M.
- Eric McNiffe and Tobias Ritter and Tom Higgins and Omid Sam-Daliri and Tomas Flanagan and Michael Walls and Pouyan Ghabezi and William Finnegan and Sin\'ead Mitchell and Noel M. Harrison
