|
Vol.47, No.2, 121 ~ 129, 2009
|
| Title |
| Strain, Microstructure and Mechanical Properties Through Thickness of Oxygen Free Copper Sheet Processed by Differential Speed Rolling |
| 이성희 Seong Hee Lee , 윤대진 Dae Jin Yoon , 좌해철부 Tetsuo Sakai , 김수현 Su Hyun Kim , 한승전 Seung Zeon Han |
|
|
|
| Abstract |
| The strain, microstructure and mechanical properties through thickness of an oxygen free copper(OFC) processed by differential speed rolling(DSR) were investigated in detail. The OFC sample with thickness of 1 mm was rolled to 35% reduction at ambient temperature without lubrication changing the differential speed ratio from 1.0:1 to 2.2:1. The shear strain introduced by the conventional rolling showed positive values at positions of upper roll side and negative values at positions of lower roll side. However, it showed zero or positive values at all positions for the samples rolled by the DSR. The effects of strain distribution through thickness of the coper sheets on microstructure, texture and mechanical properties are discussed in the present study. |
|
|
| Key Words |
| differential speed rolling, oxygen free copper, mechanical property, strain, texture |
|
|
 |
|
