| Issue |
MATEC Web Conf.
Volume 80, 2016
NUMIFORM 2016: The 12th International Conference on Numerical Methods in Industrial Forming Processes
|
|
|---|---|---|
| Article Number | 13003 | |
| Number of page(s) | 6 | |
| Section | IMS1: Engineering simulation of Bulk forming processes | |
| DOI | https://doi.org/10.1051/matecconf/20168013003 | |
| Published online | 24 October 2016 | |
The process parameters effect of ovality in cross wedge rolling for hollow valve without mandril
1 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
2 Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
a Corresponding author: Jinping Liu E-mail:liujp@ustb.edu.cn
This paper presents the experimental and numerical results of the effect process parameters on ovality in cross wedge rolling (CWR) for hollow engine valve without mandrel. Numerical simulation model for ovality was established by means of the rigid-plastic finite element modeling (FEM) method for hollow engine valve. The experiments and numerical analyses suggest that the following parameters represent the best conditions for CWR of hollow engine valve: 30°-34° for the forming angle(α), 5°-7° for the stretching angle(β), 0.2-0.3mm for the mold void width(L), and 65%-70% for the area reduction(Ψ).
Key words: Hollow engine valve / Ovality / Cross wedge rolling / Experiment / Finite element modeling
© The Authors, published by EDP Sciences, 2016
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.