The process parameters effect of ovality in cross wedge rolling for hollow valve without mandril
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Published version
Author(s)
Hongchao, Ji
Jinping, Liu
Baoyu, Wang
Jianguo, Lin
Xuefeng, Tang
Type
Conference Paper
Abstract
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).
Date Issued
2016-10-24
Date Acceptance
2016-07-04
Citation
MATEC Web of Conferences, 2016, 80
ISSN
2261-236X
Publisher
EDP Sciences
Journal / Book Title
MATEC Web of Conferences
Volume
80
Copyright Statement
© 2016 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Source
NUMIFORM 2016: The 12th International Conference on Numerical Methods in Industrial Forming Processes
Publication Status
Published
Start Date
2016-07-04
Finish Date
2016-07-07
Coverage Spatial
University of Technology of Troyes, France
Date Publish Online
2016-10-24