FEM Analysis of Large H-Beam in Rough Rolling Process

2011 ◽  
Vol 697-698 ◽  
pp. 627-630
Author(s):  
B.T. Dong ◽  
Qin He Zhang ◽  
Chuan Yu Li ◽  
Ru Po Ma
Keyword(s):  
Thermal Field ◽  
Rolling Force ◽  
Fem Analysis ◽  
Element Model ◽  
Rolling Process ◽  
Explicit Solver ◽  
H Beam ◽  
Rough Rolling ◽  
Main Deformation ◽  
Rolling Practice

The Standard and Explicit solver of ABAQUS were synthetically used to establish finite element model for reciprocating multi-pass rough rolling of large H-beam, in which the re-meshing technique was utilized to solve the problem of excessive deformation and rollers’ deformation were taken into simulation to increase the accuracy. Based on the simulation results, stress field, thermal field and deformation behavior of the workpiece were discussed. It clearly showed that the main deformation of profiled blank in rough rolling was web broadening. Compare the analytical rolling force results to the practical rolling process, and this method could provide some valuable references to the rolling practice.

Thermal Mechanical Coupled 3D Finite Element Simulation of Large H-Beam in Hot Rolling Process

2013 ◽  
Vol 281 ◽  
pp. 484-489
Author(s):  
Pei Qi Wang ◽  
Qin He Zhang ◽  
Bao Tian Dong ◽  
Ru Po Ma
Keyword(s):  
Finite Element ◽  
Rolling Force ◽  
Element Model ◽  
Rolling Process ◽  
Forming Process ◽  
Beam Production ◽  
Element Simulation ◽  
Simulation Results ◽  
Explicit Solver ◽  
H Beam

In order to research the forming process of H-beam, based on the large H-beam production line of HN600x200, the Standard and Explicit solver of ABAQUS are synthetically used to establish finite element model for rolling process and inter-pass thermolysis process. The reciprocation multi-pass rolling process simulation procedure based on the re-meshing technology is used to simulate the whole production process form blanks to finish products, and the continuity of data is ensured. Based on the simulation results, the deformation and rolling force of the roller as well as the metal flowing law and temperature field of workpiece are discussed emphatically. The results clearly show that the displacement of roller contains the elastic deformation and the deflection, and the counterforce of left adds to the counterforce of right is about equal to the resultant force. The simulation results are compared with the measuring results, which proves the correctness of simulation.

Impact Analysis of Microstructure Evolution in Hot Rolling of H-Beams

2013 ◽  
Vol 652-654 ◽  
pp. 2024-2028
Author(s):  
Wen Ping Liu ◽  
B. Zhang ◽  
Pei Qi Wang ◽  
Qin He Zhang
Keyword(s):  
Microstructure Evolution ◽  
Hot Rolling ◽  
Mechanical Model ◽  
Impact Analysis ◽  
Rolling Process ◽  
Time Interval ◽  
Hot Rolling Process ◽  
Finite Element Package ◽  
H Beam ◽  
Rough Rolling

To improve the product properties of H-beams, it is essential to understand the effects of hot rolling parameters on the microstructure evolution of the beams. For this purpose, a thermo mechanical model was built with the finite element Package ABAQUS. By re-meshing the model, multipass large-deformation hot rolling process was simulated under the boundary conditions predefined in accordance with the practical production. Based on the hot rolling simulation, an impact analysis of strain rate, initial rough rolling temperature, and time interval between passes on the microstructure evolution of H-beam austenite was conducted. The analytical results are meaningful for optimizing hot rolling parameters and improving H-beam properties.

Rolling Force Research on Cogging Rolling of H-Beam

2010 ◽  
Vol 450 ◽  
pp. 87-90
Author(s):  
Qin Qin ◽  
Di Ping Wu ◽  
Jing Jing Li ◽  
Yong Zang
Keyword(s):  
Cross Section ◽  
Rolling Force ◽  
Three Dimensional ◽  
Reduction Rate ◽  
Rolling Process ◽  
Fem Model ◽  
Mechanical Coupling ◽  
Simulation Results ◽  
H Beam ◽  
The Web

Due to the complexity of H-beam’s cross section, it is difficult to calculate the rolling force and force torque accurately using classic formulas conveniently when H-beams of new size are developed. This paper describes an investigation into the reversing process of H-beam using MARC software and compares the results with rolling data from the production line. A FEM model involving in three-dimensional, elastic-plastic and thermo-mechanical coupling has been established successfully to predict multi-pass rolling process. The analysis produces outputs such as deformation rules, rolling force and the web thickening. The influence of rolling reduction, the reduction rate between the web and flange are also discussed. The indications are that there is much difference between the measurement of rolling force and the rolling force calculated by using classic formulas. The reason is that real reduction during rolling process is much more than the scheduled one. A new revised method was suggested to calculate the rolling force. The simulation results show that this new method for calculating rolling force is feasible.

Finite Element Analysis of Thin Strip Profile in Asymmetric Cold Rolling Considering Work Roll Crossing and Shifting

2014 ◽  
Vol 1061-1062 ◽  
pp. 515-521 ◽  
Author(s):  
Abdulrahman Aljabri ◽  
Zheng Yi Jiang ◽  
Dong Bin Wei
Keyword(s):  
Finite Element ◽  
Cold Rolling ◽  
Finite Element Model ◽  
Rolling Force ◽  
Element Model ◽  
Work Roll ◽  
Rolling Process ◽  
Thin Strip ◽  
Asymmetric Rolling ◽  
Element Analysis

Cold rolled thin strip has received a great deal of attention through technological and theoretical progress in the rolling process, as well as from researchers who have focused on some essential parameters of strip such as its shape and profile. This paper describes the development of a 3-D finite element model of the shape of thin strip during cold rolling to simulate the cold rolling of WCS (work roll crossing and shifting) in asymmetric rolling. This finite element model considers the asymmetrical rolling parameters such as variations in the diameters of the rolls and the crossing angle as the work roll shifts on the strip during cold rolling. The shape and profile of the strip are discussed in the asymmetrical and symmetrical rolling conditions, while the total rolling force and distribution of stress are discussed in the case where the roll cross angle and axial shifting roll changes. The results can then be used to control the shape and profile of thin strip during rolling.

The Thermal-Mechanical Coupled FEM Analysis on 3-Roll Continual Tube Rolling PQF Deformation Process

2011 ◽  
Vol 189-193 ◽  
pp. 1670-1674
Author(s):  
Fei Xue Wang ◽  
Feng Shan Du ◽  
Hui Yu
Keyword(s):  
Finite Element Method ◽  
Deformation Process ◽  
Rolling Force ◽  
Three Dimensional ◽  
Coupled Model ◽  
Fem Analysis ◽  
Rolling Process ◽  
Tube Rolling ◽  
Key Nodes ◽  
Good Agreement

Based on the characteristics of PQF deformation process, a thermal-mechanical coupled model of this process is established by the three-dimensional elasto-plastic finite element method. The simulation according to practical rolling process of a certain factory is completed. Some important parameters such as the finished size of the rolled product, the temperature variation curves of the key nodes on the tube, the rolling force and torque of each roller are predicted during this simulation. Comparison between simulation solutions and experiment results shows a good agreement, which means this model is capable of simulating PQF deformation process as well as forecasting product quality.

FEM Simulation of Multipass Shape Rolling Processes

2010 ◽  
Vol 148-149 ◽  
pp. 1-6 ◽  
Author(s):  
Hai Liang Yu ◽  
Xiang Hua Liu
Keyword(s):  
Finite Element ◽  
Deformation Behavior ◽  
Fem Simulation ◽  
Element Model ◽  
Rolling Process ◽  
Pure Lead ◽  
Shape Rolling ◽  
First Pass ◽  
H Beam ◽  
Good Agreement

The updating geometric method was proposed to simulate the deformation behavior of workpiece during multipass shape rolling by using finite element method. Firstly, establish and solve the finite element model of the first pass shape rolling process, then update the geometric shape of workpiece after the first pass and delete rolls of the first pass, establish and mesh rolls of the second pass, modify the boundaries and material parameters of workpiece, and solve its deformation behavior during the second pass shape rolling. With the same steps, its deformation behavior during the following passes rolling could be solved. The method was applied to simulate the deformation behavior of a cube workpiece during six-pass H-beam rolling with split-rolling, and its shapes after every pass rolling process were obtained. Experiments on the deformation behavior of slab during multipass rolling were carried out by using pure lead in an experimental mill. The calculated results are in good agreement with the experimental ones.

Analysis of Square Billet Cross Wedge Rolling Process Using Finite Element Method

2012 ◽  
Vol 271-272 ◽  
pp. 406-411 ◽  
Author(s):  
Wen Yu Ma ◽  
Bao Yu Wang ◽  
Jing Zhou ◽  
Qiao Yun Li
Keyword(s):  
Finite Element ◽  
Rolling Force ◽  
Element Model ◽  
Rolling Process ◽  
Simulation Software ◽  
Cross Wedge Rolling ◽  
Forming Process ◽  
Radial Forces ◽  
Forming Angle ◽  
Deform 3D

The aim of this paper is to determine whether the train axle cross wedge rolling(CWR) using square billet as blank is available or not. Based on numerical simulation software DEFORM-3D, we built the finite element model. And the whole forming process was simulated successfully. The stress and strain distributions of workpiece in the process were analyzed. The effect of forming angle, stretching angle and billet size on rolling force was investigated, then determined the proper process parameters. The differences between the round billet rolling and the square billet rolling were obtained by comparing the tangential, axial and radial forces during the rolling process. The studied results show the availability of using square billet as blank in train axle CWR and provide important realistic meaning and application value.

Study on Ultrasonic Surface Rolling Process Using FEM Analysis

2011 ◽  
Vol 189-193 ◽  
pp. 2112-2115 ◽  
Author(s):  
Yu Liu ◽  
Li Jun Wang ◽  
Dong Po Wang
Keyword(s):  
Vibration Amplitude ◽  
Static Pressure ◽  
High Stress ◽  
Fem Analysis ◽  
Element Model ◽  
Rolling Process ◽  
Stress And Strain ◽  
Surface Nanocrystallization ◽  
Dynamic Finite Element ◽  
Vibration Parameters

Ultrasonic surface rolling processing (USRP) is a surface nanocrystallization method developed recently, which can bring metal surface with superior properties. In order to obtain the material response during USRP, a 3D dynamic finite element model was adopted to study the effects of parameters. This model was validated by experimental results of residual stress. Simulated results indicate that large ultrasonic vibration parameters generate high stress and strain, where static pressure plays a more important role than vibration amplitude. Yet high spindle speed leads to small stress and strain.

Simulation and Technology Optimization for Rolling Web Wave of Large Size H-Beam

2013 ◽  
Vol 749 ◽  
pp. 504-509
Author(s):  
Xing Ye Guo ◽  
Guo Ming Zhu ◽  
Yong Lin Kang
Keyword(s):  
Working Conditions ◽  
Rolling Force ◽  
Rolling Process ◽  
Large Size ◽  
Horizontal Roller ◽  
H Beam ◽  
Stretching Ratio ◽  
Roller Radius ◽  
The Web ◽  
Main Factor

The rolling process of large size H-Beam NH800×300 in multiple working conditions was simulated by using of commercial finite element method software LS-DYNA. the web wave emerged during rolling of H-Beam was specially demonstrated. The main factor which affected the rolling force during the rolling process has been illustrated. The rolling process under the condition of different horizontal roller radius, different friction coefficient and flange/web stretching ratio were numerically simulated. By means of simulation with different flange/web stretching ratio, it could be concluded that the crucial situation to generate the rolling web wave in typical rolling pass is that the flange/web stretching ratio is about lower than 0.93, which may cause the web unstable and the rolling wave.

Application of Mass Scaling Technology in Steel Tube Rolling by Finite Element Simulation

2014 ◽  
Vol 887-888 ◽  
pp. 1139-1142
Author(s):  
Ning Pang ◽  
Zhi Yi Zhao
Keyword(s):  
Finite Element ◽  
Rolling Force ◽  
Element Model ◽  
Rolling Process ◽  
Steel Tube ◽  
Scaling Factor ◽  
Tube Rolling ◽  
Mass Scaling ◽  
Element Simulation ◽  
Operation Platform

Based on Abaqus/Explicit operation platform, a finite element model of Yantai Baosteel Φ460mm PQF mill was established to study the mass scaling factors influence of the rolling process. The experimental results show that mass scaling factor has smaller impact on the temperature. Distortion of rolling force and Mises stress gradually occurs with the increase of mass scaling factor. Under the premise of ensuring the calculation accuracy, a best mass scaling factor is found to improve the computational efficiency of the model.

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