| Abstrakt: |
Additive manufacturing (AM) is a rapidly evolving technology that has potential to revolutionize the way products are designed, manufactured, and delivered and having a wide variety of applications including artistry, medical, bio-printing, aerospace, automobile, defence, nuclear, marine, food, electronics and for open-source hobbyist printing etc. Fused deposition modelling (FDM) is relatively simple and affordable 3D printing technique, where filament or wire form of feedstock materials are used. However, over the years full-scale implementation of this technology has become slower due to the development of new materials periodically e.g., HGPs (high-grade polymers), and thus compatibility with the existing 3D printing machines is a major challenge. The adjustment of process parameters during any manufacturing system can always be value-added, thus it is felt that investigating them and their effects will always be beneficial to improve the quality and final product. Indeed, it is difficult to consider specific FDM printing process parameters to obtain optimum mechanical behaviour in case of HGPs e.g. PEEK (poly-ether-ether-ketone). Therefore, in this paper with the help of Taguchi DOE (design of experiments), effect of four most relevant FDM printing process parameters (nozzle temp., print speed, layer height and print direction) and their percentage contribution on mechanical properties (ultimate tensile strength) were analysed for PEEK -a high-grade polymer. [ABSTRACT FROM AUTHOR] |
