| Issue |
MATEC Web Conf.
Volume 401, 2024
21st International Conference on Manufacturing Research (ICMR2024)
|
|
|---|---|---|
| Article Number | 04010 | |
| Number of page(s) | 6 | |
| Section | Special / Non-Traditional Manufacturing | |
| DOI | https://doi.org/10.1051/matecconf/202440104010 | |
| Published online | 27 August 2024 | |
Surface hardening of MIM porous metals by ultrasonic vibration assisted pressing
Graduate School of System Design, Tokyo Metropolitan University, 6-6, Asahigaoka, Hino-shi 191-0065, Tokyo, Japan
Micro MIM is one of the manufacturing methods for medical devices, which has seen a rapid increase in demand in recent years, but due to the porous structure of the product, there are concerns about insufficient strength due to low density. Ultrasonic-assisted surface reinforcement was proposed to supplement the strength by hardening the surface and improving bending stiffness in this study. Ultrasonic-assisted pressing was performed to verify mechanism for the surface hardening by comparing MIM and rolled specimen. The materials used are pure copper MIM. It was found that MIM specimen have a characteristic in which strain is concentrated near the surface compared to rolled specimen. This suggests that the cause of the concentration of strain on the surface may be the absorption of ultrasonic energy by the pores inside the material due to sound and shock absorption properties of the porous structure.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.