FE Analysis on Rolls Deformation in Rolling Process of 4100 Heavy Plate Mill

2012 ◽  
Vol 562-564 ◽  
pp. 631-634
Author(s):  
Xue Tong Li ◽  
Min Ting Wang ◽  
Feng Shan Du ◽  
Yong Gang Cui
Keyword(s):  
Finite Element Method ◽  
Plastic Deformation ◽  
Finite Element ◽  
Rolling Process ◽  
Fe Analysis ◽  
Fe Model ◽  
Plate Mill ◽  
Elastic Plastic ◽  
Heavy Plate ◽  
Roll Gap

Against 4100 heavy plate miller, a 3-D rolling model involving rolls’ elastic deformation and workpiece’s elastic-plastic deformation is established using large deformation elastic-plastic finite element method. The distributions of the rolls’ bending deformation and the roll gap shape by simulation under the different processes. The results can provide the practical referential value for equipment design and processing setup of heavy plate mill. The FE model may be used to analyze skinning process on off-line.

Contact Behaviors of Coated Asperity with Power-Law Hardening Elastic–Plastic Substrate During Loading and Unloading Process

2018 ◽  
Vol 10 (03) ◽  
pp. 1850034 ◽  
Author(s):  
Xiqun Lu ◽  
Fuzhan Huang ◽  
Bin Zhao ◽  
Leon M. Keer
Keyword(s):  
Finite Element Method ◽  
Plastic Deformation ◽  
Finite Element ◽  
Power Law ◽  
Coating Thickness ◽  
Rapid Decrease ◽  
Plastic Substrate ◽  
The Finite Element Method ◽  
Elastic Plastic ◽  
Loading And Unloading

The behavior of a coated asperity contacting with a rigid flat during the loading and unloading processes is investigated using the finite element method. The power-law hardening elastic–plastic substrate is considered, and the effect of the substrate hardening exponent and the coating thickness on the contact behavior is studied. It is shown that in the loading process, the contact load increases more slow and the contact area increases faster as the interference increases for smaller coating thickness and hardening exponent cases, and the coating thickness recovers more obviously after a rapid decrease. In the unloading process, the residual interference and the pileup effect of the asperity surface is larger for smaller coating thicknesses and hardening exponents, and the energy loss due to the plastic deformation is larger accordingly.

Anslysis of the 5-m Heavy Plate Mill Stand Based on MSC.Marc Finite Element Method

2011 ◽  
Vol 189-193 ◽  
pp. 1844-1848
Author(s):  
Zhen Yi Huang ◽  
Min Xia Chen ◽  
Chang Hong Li ◽  
Sheng Fu Wu ◽  
Wei Wang ◽  
...  
Keyword(s):  
Finite Element ◽  
Rolling Mill ◽  
Rolling Force ◽  
Rolling Process ◽  
Simulation Software ◽  
Stress And Strain ◽  
Plate Mill ◽  
Heavy Plate ◽  
System Pressure ◽  
Roller System

The stand is the largest and most important part in rolling-mill components.It bears tremendous rolling force, instant impact and part of the rolling torque during the rolling process .In addition ,roller system ,pressure and balance system also installed in it. Therefore, rolling mill must be equipped with sufficient strength and stiffness to ensure the safety of mill equipment and accuracy of the size of products. In this paper, It uses the finite element simulation software MSC.Marc to simulate and analyze the 3-D finite 5-m heavy plate mill housing of Baosteel . which can provides effective theoretical basis to the optimization of technology establish and the safety of equipment. The simulation results can be used to verify the accuracy of stress and strain field measured data for the mill frame, It also can infer parts of rolling mill which is not detected and unpredictable of the stress and strain states, and further to learn about weak parts of frame in stiffness and strength facets.

Finite Element Simulation and Experimental Research on the Internal Rolling Connection for Titanium Alloy Tubes

2005 ◽  
Vol 475-479 ◽  
pp. 3287-3290 ◽  
Author(s):  
Yuan Song Zeng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Material Flow ◽  
Rolling Process ◽  
Fe Analysis ◽  
Stress And Strain ◽  
The Finite Element Method ◽  
Mechanical Method ◽  
Element Simulation ◽  
Distribution Of Stress

In this paper, the internal rolling process is presented to connect the titanium tubes to the tube fitting with the mechanical method. The material flow, the distribution of stress and strain and the connecting mechanics are analyzed by using the finite element method(FEM) for two kinds of the tube fitting structures, the triangle grooves and the rectangle grooves. Rolling experiments and tests for pressure durability, gas-sealing ability, surface finish and contact percent are also introduced. Results show that the tube joints with the triangle grooves has very excellent connecting strength, and the FE analysis agrees well with the experiments.

scholarly journals Finite element modelling of microstructural changes during equal channel angular drawing of pure aluminium

2021 ◽  
Author(s):  
Serafino Caruso ◽  
Stano Imbrogno
Keyword(s):  
Plastic Deformation ◽  
Grain Size ◽  
Finite Element ◽  
Size Variation ◽  
Fe Model ◽  
Pure Aluminium ◽  
Continuous Dynamic Recrystallization ◽  
Research Activities ◽  
Hardness Change ◽  
Continuous Dynamic

AbstractGrain refinement by severe plastic deformation (SPD) techniques, as a mechanism to control microstructure (recrystallization, grain size changes,…) and mechanical properties (yield strength, ultimate tensile strength, strain, hardness variation…) of pure aluminium conductor wires, is a topic of great interest for both academic and industrial research activities. This paper presents an innovative finite element (FE) model able to describe the microstructural evolution and the continuous dynamic recrystallization (CDRX) that occur during equal channel angular drawing (ECAD) of commercial 1370 pure aluminium (99.7% Al). A user subroutine has been developed based on the continuum mechanical model and the Hall-Petch (H-P) equations to predict grain size variation and hardness change. The model is validated by comparison with the experimental results and a predictive analysis is conducted varying the channel die angles. The study provides an accurate prediction of both the thermo-mechanical and the microstructural phenomena that occur during the process characterized by large plastic deformation.

Computation on continuous grain refinement in AA1050 aluminum during repetitive tube expansion and shrinking technique

2015 ◽  
Vol 232 (4) ◽  
pp. 307-318
Author(s):  
H Jafarzadeh ◽  
K Abrinia
Keyword(s):  
Finite Element Method ◽  
Plastic Deformation ◽  
Grain Size ◽  
Finite Element ◽  
Dislocation Density ◽  
Severe Plastic Deformation ◽  
Grain Refinement ◽  
Half Cycle ◽  
Tube Expansion ◽  
Element Method

The microstructure evolution during recently developed severe plastic deformation method named repetitive tube expansion and shrinking of commercially pure AA1050 aluminum tubes has been studied in this paper. The behavior of the material under repetitive tube expansion and shrinking including grain size and dislocation density was simulated using the finite element method. The continuous dynamic recrystallization of AA1050 during severe plastic deformation was considered as the main grain refinement mechanism in micromechanical constitutive model. Also, the flow stress of material in macroscopic scale is related to microstructure quantities. This is in contrast to the previous approaches in finite element method simulations of severe plastic deformation methods where the microstructure parameters such as grain size were not considered at all. The grain size and dislocation density data were obtained during the simulation of the first and second half-cycles of repetitive tube expansion and shrinking, and good agreement with experimental data was observed. The finite element method simulated grain refinement behavior is consistent with the experimentally obtained results, where the rapid decrease of the grain size occurred during the first half-cycle and slowed down from the second half-cycle onwards. Calculations indicated a uniform distribution of grain size and dislocation density along the tube length but a non-uniform distribution along the tube thickness. The distribution characteristics of grain size, dislocation density, hardness, and effective plastic strain were consistent with each other.

Effect of Roll Gap Geometry on the Evolution of Strain States and Textures during Asymmetrical Rolling in AA 1050

2006 ◽  
Vol 116-117 ◽  
pp. 417-420 ◽  
Author(s):  
Moo Young Huh ◽  
Hyung Gu Kang ◽  
C.K. Kang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
The Finite Element Method ◽  
Asymmetrical Rolling ◽  
Rolling Pass ◽  
Random Texture ◽  
Roll Gap ◽  
Element Method

Asymmetrical rolling was performed by rolling AA 1050 sheets with different velocities of upper and lower rolls. In order to study the effect of roll gap geometry on the evolution of strain states and textures during asymmetrical rolling, the reduction per rolling pass was varied. After asymmetrical rolling, the outer thickness layers depicted shear textures and the center thickness layers displayed a random texture. With decreasing reduction per an asymmetrical rolling pass, the thickness layers depicting shear textures increases. The strain states associated with asymmetrical rolling were investigated by simulations with the finite element method (FEM).

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