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FINITE ELEMENT ANALYSIS OF AXIAL FEED BAR ROLLING () Abstract:A flexible technique of hot working of bars by axial feed rolling was introduced. The processdeformation, strain field, stress field... rolling; deformation; FEM (finite element method); stress field; strain field; temperature field; [全文内容正在添加中] ......
Strain distribution of strips with spherical inclusion during cold rolling YU Hai-liang(喻海良)1, BI Hong-yun(毕鸿运)2, LIU Xiang-hua(刘相华)1, TU Yan-feng(涂艳峰)1 1. State Key Laboratory of Rolling...; Abstract: The deformation of 304 stainless steel strips with a spherical inclusion during cold rolling was simulated by 3D finite element method, and the strain distribution......
of ring rolling, is commonly used to manufacture large rings and ring blanks for further mechanical processes. It is characterized by 3D deformation, high nonlinearity, con-tinuously progressive forming... mesh throughout the analysis. 3.2 Material model The material of the ring adopts elastic-plastic constitutive model and the flow stress is strongly dependent on the strain, strain rate......
structure where twins occupied relatively high volume fraction. Twinning dominated the deformation at rolling speed exceeding the optimum, resulting in the local recrystallization with shear bands and coarse grains. Rolling at 50.0 ± 0.8 m/min could get the best overall tensile properties and rolling formability due to the relatively high recrystallization degree and microstructure uniformity......
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rate, strain, stress and temperature, have been applied frequently in the investigations of hot deformation. There are two favorite equations: one is the power law () which is not satisfied at high... to obtain improved properties at ambient temperature[5-9]. A recent study found that the recrystallized grains of AM60 alloy could be reduced to 1 μm by large strain rolling, which produced one pass......
Metal deformation in skew rolling step-shaftYongqiang Kang, Jinping Liu, Cuiping Yang, and Zhenghuan HuMechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正> The process of rolling step-shaft was simulated with the help of the FEM (Finite-Element Model) software-DEFORM?3D. The characteristics......
HEAT TRANSFER ANALYSIS DURING ROLLING OF THIN SLAB IN CSP W.F. Wu1,Y.H. Feng2,X.X. Zhang2 (1.Inner Mongolia University of Science and Technology, Baotou 014010, China;2.University of Science and Technology Beijing, Beijing 100083, China) Abstract:A mathematical model has been built to numerically predict the thermal history of thin slab during CSP (compact strip process) rolling. To estimate......
and the quantized wavelet coefficients from 1 to J. The noise is typically a high frequency signal, and the rolling element bearing vibration signal is also concentrated in front of the IMFs. Some IMFs...J. Cent. South Univ. (2016) 23: 1682-1689 DOI: 10.1007/s11771-016-3222-x Rolling element bearing instantaneous rotational frequency estimation based on EMD soft-thresholding denoising......