| Autor: |
Naizabekov, Abdrakhman B., Lezhnev, Sergey N., Panin, Evgeniy |
| Zdroj: |
Materials Science Forum; February 2022, Vol. 1052 Issue: 1 p335-339, 5p |
| Abstrakt: |
The paper analyzes the influence of various geometric factors on the destruction possibility of aluminum alloys during pressing in an equal-channel step matrix, which allows to obtain an ultrafine-grained structure. It is found that the angle of the junction of the matrix channels has a significant effect on the Cockroft-Latham damage criterion, in contrast to the length of the inclined channel of the matrix. The most optimal value of the joint angle is 135° - in this case, the metal is processed with a sufficiently high intensity at a low level of the fracture criterion. The length of the inclined channel of the matrix is recommended to use no more than 15 mm to reduce the level of damage. |
| Databáze: |
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