CLC number: TG306; TH162+.1
On-line Access: 2014-06-04
Received: 2013-12-23
Revision Accepted: 2014-05-06
Crosschecked: 2014-05-21
Cited: 9
Clicked: 8688
Yong Li, Jin Wang, Guo-dong Lu, Guo-jun Pan. A numerical study of the effects of roller paths on dimensional precision in die-less spinning of sheet metal[J]. Journal of Zhejiang University Science A, 2014, 15(6): 432-446.
@article{title="A numerical study of the effects of roller paths on dimensional precision in die-less spinning of sheet metal",
author="Yong Li, Jin Wang, Guo-dong Lu, Guo-jun Pan",
journal="Journal of Zhejiang University Science A",
volume="15",
number="6",
pages="432-446",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300405"
}
%0 Journal Article
%T A numerical study of the effects of roller paths on dimensional precision in die-less spinning of sheet metal
%A Yong Li
%A Jin Wang
%A Guo-dong Lu
%A Guo-jun Pan
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 6
%P 432-446
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300405
TY - JOUR
T1 - A numerical study of the effects of roller paths on dimensional precision in die-less spinning of sheet metal
A1 - Yong Li
A1 - Jin Wang
A1 - Guo-dong Lu
A1 - Guo-jun Pan
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 6
SP - 432
EP - 446
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300405
Abstract: die-less spinning eliminates the dependence upon the mandrel of traditional spinning, but bringing about comparatively poor dimensional accuracy which needs to be improved. In this paper, roller paths in the first pass of die-less spinning, including concave, convex, linear and combined ones are parameterized according to the degree of bending and their effects on dimensional precision (thickness variation and shape deviation) have been studied by using experiments of finite element (FE) analysis. The effects of roller paths on thickness variation, shape deviation, tool forces, and stress and strain variations have been analyzed numerically. The results showed that for concave roller paths, the thickness variation is not very sensitive to the degree of bending, while a low degree of bending of the roller path can result in a low shape deviation. For convex roller paths, a low degree of bending leads to both low thickness reduction and low shape deviation. Further research shows that a combined roller path with convex-concave curve could contribute a low shape deviation, while an inverse combined roller path gives better thickness precision.
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