Influence of Roll Diameter on Material Deformation and Properties during Wire Flat Rolling
The influence of roll diameter on the strain distribution, shape change, contact pressure, and damage value of a workpiece was investigated during wire flat rolling to control the material properties of the flattened wire. The flattened wires fabricated by the four different rolls were compared usin...
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doaj-497473c31ec04c6ab5bf4b6fcab735532021-09-25T23:39:33ZengMDPI AGApplied Sciences2076-34172021-09-01118381838110.3390/app11188381Influence of Roll Diameter on Material Deformation and Properties during Wire Flat RollingJoong-Ki Hwang0Sung-Jin Kim1Kee-Joo Kim2School of Mechanical Engineering, Tongmyong University, Busan 48520, KoreaDepartment of Advanced Materials Engineering, Sunchon National University, Suncheon 57922, KoreaSchool of Mechanical Engineering, Tongmyong University, Busan 48520, KoreaThe influence of roll diameter on the strain distribution, shape change, contact pressure, and damage value of a workpiece was investigated during wire flat rolling to control the material properties of the flattened wire. The flattened wires fabricated by the four different rolls were compared using finite element analysis. The strain inhomogeneity of the flat-rolled wire increased with the roll diameter; thus, the macroscopic shear bands were strengthened as the roll diameter increased during wire flat rolling. The contact width and lateral spreading of the flattened wire increased with the roll diameter; therefore, the reduction in area decreased with the roll diameter. The contour of the normal contact pressure on the wire surface exhibited a similar pattern regardless of the roll diameter. The contact pressure showed higher values at the entry, edge, and exit zones in the contact area. The distribution of the damage value varied with the roll diameter. The free surface region tended to have the peak damage value during the process; however, the center region exhibited the maximum damage value with the roll diameter. From the perspective of the damage value, the optimum roll diameter was in existence during wire flat rolling. The underlying cause of the different strain distributions, shape changes, and damage values of the flat-rolled wire was the different contact lengths originating from the different roll diameters during wire flat rolling.https://www.mdpi.com/2076-3417/11/18/8381roll diameterwire flat rollingstrain distributioncontact pressuredamage value |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Joong-Ki Hwang Sung-Jin Kim Kee-Joo Kim |
spellingShingle |
Joong-Ki Hwang Sung-Jin Kim Kee-Joo Kim Influence of Roll Diameter on Material Deformation and Properties during Wire Flat Rolling Applied Sciences roll diameter wire flat rolling strain distribution contact pressure damage value |
author_facet |
Joong-Ki Hwang Sung-Jin Kim Kee-Joo Kim |
author_sort |
Joong-Ki Hwang |
title |
Influence of Roll Diameter on Material Deformation and Properties during Wire Flat Rolling |
title_short |
Influence of Roll Diameter on Material Deformation and Properties during Wire Flat Rolling |
title_full |
Influence of Roll Diameter on Material Deformation and Properties during Wire Flat Rolling |
title_fullStr |
Influence of Roll Diameter on Material Deformation and Properties during Wire Flat Rolling |
title_full_unstemmed |
Influence of Roll Diameter on Material Deformation and Properties during Wire Flat Rolling |
title_sort |
influence of roll diameter on material deformation and properties during wire flat rolling |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-09-01 |
description |
The influence of roll diameter on the strain distribution, shape change, contact pressure, and damage value of a workpiece was investigated during wire flat rolling to control the material properties of the flattened wire. The flattened wires fabricated by the four different rolls were compared using finite element analysis. The strain inhomogeneity of the flat-rolled wire increased with the roll diameter; thus, the macroscopic shear bands were strengthened as the roll diameter increased during wire flat rolling. The contact width and lateral spreading of the flattened wire increased with the roll diameter; therefore, the reduction in area decreased with the roll diameter. The contour of the normal contact pressure on the wire surface exhibited a similar pattern regardless of the roll diameter. The contact pressure showed higher values at the entry, edge, and exit zones in the contact area. The distribution of the damage value varied with the roll diameter. The free surface region tended to have the peak damage value during the process; however, the center region exhibited the maximum damage value with the roll diameter. From the perspective of the damage value, the optimum roll diameter was in existence during wire flat rolling. The underlying cause of the different strain distributions, shape changes, and damage values of the flat-rolled wire was the different contact lengths originating from the different roll diameters during wire flat rolling. |
topic |
roll diameter wire flat rolling strain distribution contact pressure damage value |
url |
https://www.mdpi.com/2076-3417/11/18/8381 |
work_keys_str_mv |
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