Strain Distribution Characteristics in the Rolling Process of Shaped Wires

2011 ◽  
Vol 340 ◽  
pp. 64-69
Author(s):  
Bo Jian Wang ◽  
Wu Peng Zhang ◽  
Yong Jie Wang
Keyword(s):  
Equivalent Stress ◽  
Metal Flow ◽  
Rolling Process ◽  
Equivalent Strain ◽  
Stress And Strain ◽  
Distribution Characteristics ◽  
Shaping Process ◽  
Deformation Features ◽  
Hardness Values ◽  
Deform 3D

Based on the deformation features in the rolling process of shaped wires, this paper focuses on the metal flow rules and distribution characteristics of stress and strain through simulating the shaping process by DEFORM-3D. The equivalent stress and equivalent strain is in the same distribution: smallest on the base and gradually increasing along the broadening direction and highest on the tooth. A satisfactory concordance between the scattering of the hardness values measured over the wire sections and that of the equivalent strain is found, thus verifying the accuracy and the reasonableness of the simulation process.

Finite Element Analysis of Rolling Process for Pilger Mill

2014 ◽  
Vol 881-883 ◽  
pp. 1420-1423 ◽  
Author(s):  
Ning An ◽  
Liu Hai
Keyword(s):  
Rolling Force ◽  
Equivalent Stress ◽  
Rolling Process ◽  
Equivalent Strain ◽  
Roll Pass ◽  
Element Analysis ◽  
Pipe Rolling ◽  
Cold Rolled ◽  
Simulation Results ◽  
Deform 3D

For the simulation of cold rolled 20Cr steel pipe rolling process the DEFORM-3D being used, the simulation results include the equivalent stress, equivalent strain and rolling force distribution in deformation zone. The stress state of the pipe reducer section is analyzed, analysis shows that the simulation result is approximate the theoretical calculation. The simulation result shows the roll pass and openning effect on the rolling pipe. A view put forward is to compare the simulation results with the actual production and find out their differences. A proposal is made to establish a corresponding database based on simulation and production data.

Study on Precision Forging Schemes of Hypoid Driving Gear

2012 ◽  
Vol 472-475 ◽  
pp. 692-695
Author(s):  
Jian Hua Wang ◽  
Fu Xiao Chen
Keyword(s):  
Equivalent Stress ◽  
Three Dimensional ◽  
Equivalent Strain ◽  
Precision Forging ◽  
Forming Technology ◽  
Blank Shape ◽  
Simulation Results ◽  
Three Dimensional Models ◽  
3D Software ◽  
Deform 3D

By analyzing the characteristics and forming technology of hypoid driving gear, it was suitable for adopting fully enclosed die forging principle to form the gear. Based on different forging methods, three kinds of blank shape and corresponding forming schemes were designed. The three dimensional models of blank and die were created by the UG software. The three forming schemes were simulated by the Deform-3D software. The simulation results of distribution of equivalent stress, distribution of equivalent strain and load-stroke curve were comparatively analyzed. Then the most reasonable scheme was chosen. At last, the rationality of numerical simulation can be further verified by the optimized scheme was proved by experiment.

Numerical Simulation and Analysis for Surface Defect Prediction in the Hot Bar Rolling Process

2011 ◽  
Vol 474-476 ◽  
pp. 325-329 ◽  
Author(s):  
Jie Jin ◽  
Gang Huang
Keyword(s):  
Numerical Simulation ◽  
Surface Defects ◽  
Simulation Analysis ◽  
Equivalent Stress ◽  
Rolling Process ◽  
Processing Parameters ◽  
Equivalent Strain ◽  
Practical Significance ◽  
Bar Rolling ◽  
Hot Rolled

Establishment of numerical model for hot rolled bar and analysis the changes from the discrete points on surface during the hot bar rolling process (includes velocity, displacement, equivalent stress, equivalent strain). And the position of surface defects can be effectively predicted form this. Compared with the actual hot rolling bar production, numerical simulation was in good agreement with it. So that the numerical simulation analysis has practical significance for optimizing processing parameters and process design to ensure product quality.

Numerical Simulation of Precision Forming for Blade Rotor Based on DEFORM

2011 ◽  
Vol 130-134 ◽  
pp. 2388-2391
Author(s):  
Fang Liu ◽  
Lu Yun Zhang
Keyword(s):  
Numerical Simulation ◽  
Metal Flow ◽  
Flow Rule ◽  
Stress And Strain ◽  
Deformation Characteristics ◽  
Forming Process ◽  
Plastic Forming ◽  
Deform 3D

In order to study the deformation characteristics of the blade rotor in the precision forming, by means of the plastic forming software DEFORM-3D, the forming process is simulated. It is concluded that (1) the change of the stress and strain in different stages was simulated during the entire forming process. (2) Based on the stress and strain distributions, the analysis of the metal flow rule and the mechanism of the filling mold was proceeded to find that the properties of the blade rotor can be enhanced by means of the precision forming.

Stress and Strain Characteristics of Aluminum Equal Channel Angular Pressing

2013 ◽  
Vol 440 ◽  
pp. 92-96
Author(s):  
J.H. Li ◽  
Z.J. Yu ◽  
D.P. Jiang ◽  
W. Chen
Keyword(s):  
Equal Channel Angular Pressing ◽  
Strain Distribution ◽  
Reverse Flow ◽  
Equivalent Stress ◽  
Three Dimensional ◽  
Equivalent Strain ◽  
Stress And Strain ◽  
Rigid Plastic ◽  
Ecap Processing ◽  
Angular Pressing

To investigate the stress and strain distribution characteristics of equal channel angular pressing (ECAP), rigid-plastic finite element was used to simulate the aluminum ECAP processing. The simulation results showed that equivalent stress distribution of the sample was uneven, and severe stress concentration was at the channel corner. Equivalent strain distribution of the sample was also uneven, and the deformed sample can be roughly divided as three deformation regions: the front, the middle and the end. At the region of front, the plasctic deformation was extremely uneven and the gradient value of equivalent strain was relatively large, at the region of middle, the plasctic deformation was stable and uniform, at the region of end, there existed material reverse flow the sample contacted with the plunger and bearing heavy three-dimensional compressive stress.

Finite-Element Analysis and Optimization for Gradient Porous Structure of Artificial Bone

2012 ◽  
Vol 271-272 ◽  
pp. 922-926 ◽  
Author(s):  
Yan Mei Qi ◽  
Li Jun Yang ◽  
Li Li Wang
Keyword(s):  
Mechanical Properties ◽  
Porous Structure ◽  
Equivalent Stress ◽  
Strain Analysis ◽  
Equivalent Strain ◽  
Stress And Strain ◽  
Artificial Bone ◽  
Element Analysis ◽  
Maximum Equivalent Stress ◽  
Ansys Workbench

The loading force of the artificial bone implanted into the human body and the flowing, growth and deposition of cells were influenced by the gradient porous structure. The software of ANSYS Workbench was used in the paper for the stress and strain analysis of the gradient porous structure of the established 3D artificial bone. The variation of the maximum equivalent stress and maximum equivalent strain and elastic modulus changed through the changing of the loading force and porosity. Basis on meeting the mechanical properties, the porosity was used as the index for the optimization of the porous structure of the artificial bone. And it also laid the foundation for the subsequent laser sintering.

scholarly journals Investigation on Ultra-high Temperature Forging Process Based on DEFORM-3D Simulation

2021 ◽  
Author(s):  
Wu Yong-qiang ◽  
Wang Kai-kun
Keyword(s):  
High Temperature ◽  
Equivalent Stress ◽  
Strain Curve ◽  
Green Manufacturing ◽  
Equivalent Strain ◽  
Temperature Fields ◽  
Forging Process ◽  
Reheating Process ◽  
Deform 3D ◽  
Ultra High Temperature

Abstract Green manufacturing and forming technology is becoming increasingly important in modern industry. In this study, a new forging technology with the ultra-high temperature demoulding is introduced, in which conventional reheating process could be avoided. The DEFORM-3D software simulated the forging process and the temperature fields were obtained. The traditional forging process was simulated when the initial forging temperature was 1220℃. The highest temperature of the ingot in the new forging technology was about 200℃ higher than that of the traditional forging process. We cut the ingot longitudinally along the centerline. Nine points on the axis of the cutting plane and nine points on the radial direction were selected. The equivalent stress and the equivalent strain of these points were compared respectively under the two forging processes by using the particle tracking method. The variation laws of the equivalent stress and the equivalent strain with the reduction were obtained. According to the variation laws, the typical points which were easy to crack under two different forging processes were found. Based on the flow stress-strain curve calculated by the software JMatPro®, the new forging technology could avoid hot cracking.

Study on Metal Flow in the Finish Rolling Process of Large-Sized H-Beam

2014 ◽  
Vol 602-605 ◽  
pp. 705-708
Author(s):  
Jin Hong Ma ◽  
Bin Tao ◽  
Xiao Han Yao
Keyword(s):  
Metal Flow ◽  
Rolling Process ◽  
Production Data ◽  
Fe Model ◽  
Continuous Rolling ◽  
Finish Rolling ◽  
Deformation Law ◽  
Hot Continuous Rolling ◽  
H Beam ◽  
Deform 3D

According to the production data of a rolling H-beam factory, the FE model of hot continuous rolling process of H-beam is built. With the FEM software of DEFORM-3D, the continuous rolling of H-beam was simulated. On base of simulation result, the metal flow and deformation law are discussed. Because of the flange and web is deformed in the different deformation zone, the metal flow law of flange and web is complex, especially the metal of the conjunction of flange and web. In this paper, the metal flow of large-sized H-beam in finishing rolling process is analyzed.

Analysis about Effect of Rolling Parameters on Broadwise Deformation

2010 ◽  
Vol 154-155 ◽  
pp. 822-827
Author(s):  
Jie Jin ◽  
Sheng Wei Tian
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Rolling Process ◽  
Equivalent Strain ◽  
Post Processing ◽  
Related Strain ◽  
Rigid Plastic ◽  
Strain Data ◽  
Deform 3D ◽  
Element Method

The effects of rolling parameters on the broadwise deformation of the workpiece are analyzed by rigid-plastic finite element method. At the basis of better grasping the effective law on freedom broadwise deformation ,the effects of the Oval height and Oval width on the Forced /Restricted broadwise deformation in rolling process are analyzed. Considering the equivalent strain,the effects of the Oval height and Oval width are gotten again using the related strain data in the DEFORM-3D post-processing.

Study on Hot Rolling Process of Mg-Gd-Y-Nd-Zr Alloy Bar

2014 ◽  
Vol 1004-1005 ◽  
pp. 1289-1294
Author(s):  
La Feng Guo ◽  
Zhi Heng Li ◽  
Pan Yu Chen ◽  
Bao Cheng Li ◽  
Zhi Min Zhang
Keyword(s):  
Hot Rolling ◽  
Equivalent Stress ◽  
Rolling Process ◽  
Pass System ◽  
Hot Rolling Process ◽  
Rolling Method ◽  
3D Software ◽  
Deform 3D ◽  
Round Pass ◽  
Zr Alloy

A hot rolling method to produce Mg-Gd-Y-Nd-Zr alloy bars through oval-vertical elliptical-round pass system is put forward. The mechanical model of Mg-Gd-Y-Nd-Zr alloy has been established. Using Deform-3D software, the rolling process of Mg-Gd-Y-Nd-Zr alloy bar is simulated at rolling temperature 450°C, rolling speed 0.4m/s. And equivalent stress distribution and load variation has been obtained. It provides a theoretical basis for the hot rolling bars of magnesium alloy. The experiment verifies that the hot rolling process is feasible. The organizational structure is analyzed with metallographic microscope, and the results show that dynamic recrystallization is occurred, the grain size is obviously refined, and the mechanical property of the material is improved in hot rolling process.

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