The Research on the Generated Mechanism about the End Concavity of Shaft in the Closed Type of Cross Wedge Rolling

2015 ◽  
Vol 1095 ◽  
pp. 888-893 ◽  
Author(s):  
Ji Dong Ma ◽  
Chang Shu ◽  
Bao Shou Sun ◽  
Cheng Chao ◽  
Chao Cheng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analysis Software ◽  
Cross Wedge Rolling ◽  
Rigid Plastic ◽  
Element Analysis ◽  
Closed Type ◽  
Theoretical Significance ◽  
Material Utilization ◽  
Deform 3D

To further improve the material utilization in cross wedge rolling, the paper simulated the forming of closed cross wedge rolling through DEFORM-3D, a rigid-plastic finite element analysis software, and analyzed the distribution and changing rule on the fields of strain and displacement in the parts rolling. Then the paper clarified the generated mechanism about the end concavity of shaft in the closed type of cross wedge rolling, which has great theoretical significance and engineering applied value in controlling and decreasing the end concavity in closed type cross wedge rolling and improving the parts’ end quality.

The Optimized Negative Clearance Value with Reason in ASTM-Gr.D Fine-Blanking with Negative Clearance Blanking

2012 ◽  
Vol 588-589 ◽  
pp. 80-83
Author(s):  
W.F. Fan ◽  
J.H. Li ◽  
F. Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Similarity Theory ◽  
Element Model ◽  
Analysis Software ◽  
Rigid Plastic ◽  
Element Analysis ◽  
Fine Blanking ◽  
Geometry Model ◽  
Negative Clearance

This paper has established geometry model of the rigid-plastic Finite Element Model (FEM) basing on the foundation of similarity theory. It has simulated and analyzed the material of ASTM-Gr.D used by finite element analysis software of metal plastic DEFORM with different negative clearance values blanking, which obtains the caver of the different negative clearance values with roll-over with sheared zone with punching load. According to the result of simulation, it has made an experiment on the ASTM-Gr.D of 2.0(mm) thickness with the different negative clearance, and obtained samples with sheared well and no burr, which summarized that it could achieve no burr in fine blanking when the values of negative clearances value took -0.1 ~ -0.3mm.

Development and Research of Foundation Pit Fluid-Solid Coupling Finite Element Analysis Software Based on Automatic Parametric Modeling

2013 ◽  
Vol 457-458 ◽  
pp. 713-723
Author(s):  
Xiao Hua Pan ◽  
Guo Liang Li ◽  
Qian Yu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Model ◽  
Parametric Modeling ◽  
Time Effect ◽  
Analysis Software ◽  
Foundation Pit ◽  
Element Analysis ◽  
Key Technology ◽  
Theoretical Significance

In order to automatic parametric establish foundation pit finite element model more simple, more convenient, more efficient, a foundation pit fluid-solid coupling finite element analysis software based on automatic parametric modeling has been developed, which fluid-solid coupling and time-effect coupling are considered. The architecture, characteristics, functions and key technology of this software are introduced. Meanwhile, application of the software to CCTV foundation pit verifies the convenient and reliability. The results show that this study has important theoretical significance and application value.

Analysis on Temperature Field of Work-Piece during Cross Wedge Rolling

2011 ◽  
Vol 230-232 ◽  
pp. 352-356
Author(s):  
Wen Ke Liu ◽  
Kang Sheng Zhang ◽  
Zheng Huan Hu
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Metal Flow ◽  
Work Piece ◽  
Contact Deformation ◽  
Cross Wedge Rolling ◽  
Forming Process ◽  
Rigid Plastic ◽  
Finite Element Software ◽  
Deform 3D

Based on the rigid-plastic deformation finite element method and the heat transfer theories, the forming process of cross wedge rolling was simulated with the finite element software DEFORM-3D. The temperature field of the rolled piece during the forming process was analyzed. The results show that the temperature gradient in the outer of the work-piece is sometimes very large and temperature near the contact deformation zone is the lowest while temperature near the center of the rolled-piece keeps relatively stable and even rises slightly. Research results provide a basis for further study on metal flow and accurate shaping of work-piece during cross wedge rolling.

Finite Element Analysis and Optimization of the Truss of Installing Wave-Maker Based on ANSYS

2013 ◽  
Vol 313-314 ◽  
pp. 1038-1041
Author(s):  
Shou Jun Wang ◽  
Xing Xiong ◽  
Chao Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Parameters ◽  
Analysis Software ◽  
Element Analysis ◽  
Large Span ◽  
The Finite Element Analysis ◽  
Wave Maker

According to uncertainty of the design parameters for large span truss of installing wave-maker, in order to avoid the waste of materials,the truss is analyzed based on the finite element analysis software ANSYS to find out its weaknesses and various parts of the deformation. On the premise of ensuring the intensity and stiffness, the weight of the truss is reduced by adjusting its sizes and selecting different profiles, so as to achieve the optimization of the truss of installing wave-maker.

Rigid-Plastic Finite Element Simulation of Cold Forging and Sheet Metal Forming by Eulerian Meshing Method

2014 ◽  
Vol 970 ◽  
pp. 177-184 ◽  
Author(s):  
Wen Chiet Cheong ◽  
Heng Keong Kam ◽  
Chan Chin Wang ◽  
Ying Pio Lim
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Large Deformation ◽  
Sheet Metal ◽  
Metal Forming ◽  
The Body ◽  
Cold Forging ◽  
Rigid Plastic ◽  
Element Analysis ◽  
Linear Solution

A computational technique of rigid-plastic finite element method by using the Eulerian meshing method was developed to deal with large deformation problem in metal forming by replacing the conventional way of applying complicated remeshing schemes when using the Lagrange’s elements. During metal forming process, a workpiece normally undergoes large deformation and causes severe distortion of elements in finite element analysis. The distorted element may lead to instability in numerical calculation and divergence of non-linear solution in finite element analysis. With Eulerian elements, the initial elements are generated to fix into a specified analytical region with particles implanted as markers to form the body of a workpiece. The particles are allowed to flow between the elements after each deformation step to show the deforming pattern of material. Four types of cold forging and sheet metal clinching were conducted to investigate the effectiveness of the presented method. The proposed method is found to be effective by comparing the results on dimension of the final product, material flow behaviour and punch load versus stroke obtained from simulation and experiment.

Experimental Research on the Magnetic Field Sensitive Polymeric Actuator

2011 ◽  
Vol 287-290 ◽  
pp. 603-607
Author(s):  
Chun Lin Xia ◽  
Yang Fang Wu ◽  
Qian Qian Lu
Keyword(s):  
Magnetic Field ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Energy Conversion ◽  
Experimental Research ◽  
Experimental Results ◽  
Deformation Characteristics ◽  
Analysis Software ◽  
Element Analysis ◽  
The Magnetic Field

Using domestic MFSP membrane as a medium of energy conversion, a kind of MFSP actuator was designed. The dedicated test equipment was constructed for experimental research, and the experimental results were given. The strip and circular MSFP membrane were analyzed qualitatively to obtain the deformation characteristics of membrane by finite element analysis software.

Sign in / Sign up

Export Citation Format

Share Document