| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-grained and Heterostructured Materials (UFGH XIII)
|
| Presentation Title |
Ultrasonic Vibration-assisted Microforming of UFG Metals Produced by ECAP |
| Author(s) |
Wojciech Presz |
| On-Site Speaker (Planned) |
Wojciech Presz |
| Abstract Scope |
Sub-millimetre metal parts require high dimensional accuracy and high surface smoothness. This depends on the grain size of the material. Therefore, materials with a very fine grain size are naturally preferred for the production of small components. For sub-millimetre products, the friction conditions deteriorate significantly. This can be remedied by ultrasonic support. In this study, the effect of ultrasonic vibration support with a frequency of 20 kHz and an amplitude of 0.04 mm on the indentation of a 1-mm-diameter cylindrical punch into a 1-mm-thick sheet of 6060 aluminium obtained by simple upsetting from an 8x8-mm square bar was analysed. A grain size of less than 1 um of rod material was achieved by ECAP. This increased the maximum force of the indentation process by 15 per cent. The application of vibration reduced this force by more than 20 per cent in both cases analysed: with and without ECAP treatment. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Other, Other |