| Yazarlar |
Prof. Dr. Levent URTEKİN
Kırşehir Ahi Evran Üniversitesi, Türkiye |
Asım Genç
Gazi Üniversitesi, Türkiye |
|
Fatih Bozkurt
Eskişehir Teknik Üniversitesi, Türkiye |
| Özet |
| Titanium-powder injection molding is a combination of plastic injection and powder metallurgy. Using this technology, near-net titanium parts are produced. In this study, feedstock-development experiments were performed with Ti-6Al-4V powders and binders for the production of titanium cortical-bone screws. Critical solid-loading and optimum solid-loading values were determined to specify the most appropriate binder system and ratio by volume. The critical solid-loading rate was determined as 62 % by volume while the optimum solid-loading rate was 60 % by volume. The rheological properties of the feedstocks were obtained with a capillary rheometer, and the thermal properties with a TGA analysis. The rheological behavior and thermal properties of PW/PE/SA and PEG8000/PP/SA feedstocks at different mixing ratios were determined. A simulation of the flow was made with the Moldflow program, designing a screw and a mold. For the two different feedstocks, skeletal binders PP and PE were identified and simulations were carried out. The knowledge that the feedstock skeletal-binder properties predominate was obtained as the data for the flow in the mold in the light. Experiments and simulations showed that the water-based feedstock is a suitable binder system for the cortical-bone screw molding. |
| Anahtar Kelimeler |
| Feedstock | Powder injection molding | Rheology | Ti-6Al-4V cortical-bone screw |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Materiali in Tehnologije |
| Dergi ISSN | 1580-2949 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 10-2019 |
| Cilt No | 53 |
| Sayı | 5 |
| Sayfalar | 619 / 625 |
| Doi Numarası | 10.17222/mit.2018.088 |
| Makale Linki | http://dx.doi.org/10.17222/mit.2018.088 |
| Atıf Sayıları | |
| SCOPUS | 9 |
| Google Scholar | 9 |
