Technological and construction aspects of the process of hot extrusion of twist drills
Artykuł w czasopiśmie
MNiSW
140
Lista 2021
| Status: | |
| Autorzy: | Bulzak Tomasz, Pater Zbigniew, Tomczak Janusz, Majerski Krzysztof |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2019 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 45 |
| Strony: | 123 - 137 |
| Impact Factor: | 4,086 |
| Web of Science® Times Cited: | 2 |
| Scopus® Cytowania: | 4 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The article introduces a new process of extruding twist drills in split dies. In the further part of the paper thefindings of the research on extrusion of twist drills in split dies were presented. The main objective of the studywas to determine the parameters significantly influencing the value of the helix angle. Based on FEM numericalmodeling the data used for teaching the artificial neural networks was obtained. The aforementioned artificialneural networks were used to create mathematical models describing the dependency between the helix angle offlutes and geometrical parameters of the split dies used in the process of hot extrusion of twist drills. Theobtained results were then verified in experimental testing. A high compliance between the theoretical andexperimental test results confirms the validity of the designed mathematical model, obtained using multipleregression. Moreover, the study presents the usefulness of glass-based lubricants in hot extrusion processes.Analysis of the microstructure of the manufactured twist drills shows a high homogeneity of the grain dimen-sions after the hot extrusion process |
