Abstract:Reducing and homogenizing the residual stress in cold-rolled strip is an important goal to prevent plate-shaped defects. Numerical simulated by elastic-plastic finite element method,the cold rolled strip with residual stress was obtained,and the numerical simulation of the aging process was carried out,the improvement of the residual stress in the strip was obtained by the parameters of vibration. The results show that the vibration stress relief process has a significant reduction and homogenization effect on the residual stress of strip. The principle of exciting force selection is the sum of the dynamic stress and the initial residual stress to reach the yield limit of the material and less than the tensile limit of the material. The excitation frequency is chosen to be close to the natural frequency. The excitation time can be determined based on the sum of the dynamic stress generated by the exciting force during the vibration process and the residual stress of the strip begins to be less than the yield limit.
Aoki S, Kurita K, Koshimizu S, et al.Analytical Method for Reduction of Residual Stress Using Low Frequency and Ultrasonic Vibrations[J].Journal of Solid Mechanics & Materials Engineering, 2012, 6(6):742-749
[5]
Aoki S, Kurita K, Koshimizu S, et al.Analytical Method for Reduction of Residual Stress Using Low Frequency and Ultrasonic Vibrations[J].Journal of Solid Mechanics & Materials Engineering, 2012, 6(6):742-749
Ru L P, Moverare J, Avdovic P, et al.. Influence of Vibration and Heat Treatment on Residual Stress of a Machined 12%Cr-Steel[J].Advanced Materials Research, 2014, 996:609-614
Ru L P, Moverare J, Avdovic P, et al.. Influence of Vibration and Heat Treatment on Residual Stress of a Machined 12%Cr-Steel[J].Advanced Materials Research, 2014, 996:609-614
Li S Q, Fang H Y, Liu X..Influence of Vibration Stress Relief (VSR) on the Residual Stress and Microstructure in Welded Plate of DH36 Low Alloy High Strength Steel[J].Advanced Materials Research, 2014, 887-888:924-928
[9]
Li S Q, Fang H Y, Liu X..Influence of Vibration Stress Relief (VSR) on the Residual Stress and Microstructure in Welded Plate of DH36 Low Alloy High Strength Steel[J].Advanced Materials Research, 2014, 887-888:924-928