| Issue |
MATEC Web Conf.
Volume 185, 2018
2018 The 3rd International Conference on Precision Machinery and Manufacturing Technology (ICPMMT 2018)
|
|
|---|---|---|
| Article Number | 00029 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/matecconf/201818500029 | |
| Published online | 31 July 2018 | |
Self-loosening of 3D printed bolted joints for engineering applications
Department Mechanical Engineering, Inha University, 100 inha-ro, Nam-gu, Incheon, 22212, South Korea
*
Corresponding author : chulhee@inha.ac.kr
A bolt joint is a simple element that joins mechanical components. Self-loosening of bolted joints occurs due to the vibrations caused by motors and engines, resulting in the breakage of machines, and potentially serious safety problems. Recently, developments in 3D printing technologies have enabled the fabrication of detailed components. These technologies can be used for producing fasteners using 3D printed bolts. Many researchers have proposed a theoretical model for self-loosening of the bolt, and experimental studies on the self-loosening phenomenon have been advanced. However, studies on the self-loosening of 3D printed bolts have not been conducted. Therefore, it aims to confirm the self-loosening phenomenon and the safety of 3D printed bolts through experiments and finite element simulation. A lateral vibration test system is constructed and self-loosening of the bolt is evaluated by observing the axial force according to the vibration cycle by using a strain gauge. This study compared the self-loosening of 3D printed bolts and steel bolts by changing the preload and amplitude. In addition, the experimental results are verified through finite element simulation. Through this study, it is expected that 3D printed bolts will be used more frequently in situations where specially shaped bolts are needed.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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