Improvement of cross wedge rolling by using tools with a concave-convex working surface
Artykuł w czasopiśmie
MNiSW
140
Lista 2024
| Status: | |
| Autorzy: | Pater Zbigniew, Tomczak Janusz, Bulzak Tomasz, Shu Xuedao, Li Zixuan |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2026 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 172 |
| Strony: | 261 - 273 |
| Impact Factor: | 7,8 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 2 czerwca 2026 |
| Abstrakty: | angielski |
| Cross wedge rolling (CWR) processes are conducted with wedge tools, the geometry of which is described by two angles: the forming angle α and the wedge angle β. These tools have a flat working surface, this specific shape resulting primarily from the capability of tool manufacturing technology in the past. These days, however, numerically controlled machine tools make it possible to manufacture tools of any shape. Therefore, this study proposes that CWR processes be conducted using wedge tools having a concave-convex working surface, with their manufacturing cost being practically the same as that of previously used (standard) tools. FEM is employed to compare two cases of a CWR process for producing an elementary shaft: one is conducted with standard tools and the other with concave-convex tools. Focus is put on determining the impact of the proposed tool profile design on the effective strain, temperature, damage function, and force-energy parameters in the CWR process. The numerical results show the new concave-convex tool design to be highly advantageous. Experimental validation confirms that the proposed concave-convex tools can be used to produce parts with large cross-sectional reduction and that finished products have no internal cracks. The experiments also validate the developed numerical model of CWR, showing a very good qualitative and quantitative agreement between the numerical and experimental results. Finally, FEM is employed to compare two cases of a CWR process for producing a stepped shaft with a complex shape: one is conducted with the standard wedge tools and the other with the concave-convex tools. The obtained results again confirm the benefits of using tools with the new forming profile design. |
