An integrated model to predict residual stress reduction by multiple cold forging operations in extra-large AA7050 T-section panels
File(s)Pan-JEM accepted version.pdf (2.61 MB)
Accepted version
Author(s)
Type
Journal Article
Abstract
A finite element (FE) model has been developed to determine the effectiveness of a
cold compression technique to reduce the large residual stresses generated from
quenching solution heat treated T-Section components of aluminium alloy AA7050. To
compress long components, a multi-step process is required with some amount of
overlap. A parametric study has been performed to determine the effect of the
compression ratio, friction coefficient, length of overlap and length of the T-section
component on the residual stress distribution post quenching and after subsequent cold
compression. Generally a percentage reduction in the peak residual stress of over 90%
was found. The optimal parameters for residual stress relief by cold compression have
been suggested from the cases considered.
cold compression technique to reduce the large residual stresses generated from
quenching solution heat treated T-Section components of aluminium alloy AA7050. To
compress long components, a multi-step process is required with some amount of
overlap. A parametric study has been performed to determine the effect of the
compression ratio, friction coefficient, length of overlap and length of the T-section
component on the residual stress distribution post quenching and after subsequent cold
compression. Generally a percentage reduction in the peak residual stress of over 90%
was found. The optimal parameters for residual stress relief by cold compression have
been suggested from the cases considered.
Date Issued
2018-06-01
Date Acceptance
2016-09-14
Citation
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2018, 232 (8), pp.1319-1330
ISSN
0954-4054
Publisher
SAGE Publications
Start Page
1319
End Page
1330
Journal / Book Title
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Volume
232
Issue
8
Copyright Statement
© IMechE 2016. The final, definitive version of this paper has been published in Engineering Manufacture by Sage Publications Ltd. All rights reserved. It is available at: http://journals.sagepub.com/doi/10.1177/0954405416673097
Sponsor
First Aircraft Institute
Grant Number
N/A
Subjects
0910 Manufacturing Engineering
0913 Mechanical Engineering
Publication Status
Published
Date Publish Online
2016-10-17