Finite Element Analysis of Rim Ring Rolling Forming of Bicycle Aluminum Alloy

2012 ◽  
Vol 445 ◽  
pp. 231-236
Author(s):  
Dyi Cheng Chen ◽  
Bao Yan Lai ◽  
Ci Syong You
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Effective Strain ◽  
Rolling Process ◽  
Ring Rolling ◽  
Rigid Plastic ◽  
Element Analysis ◽  
Rolling Velocity ◽  
Plastic Deformation Behavior

The bicycle is not only a pollution-free method of transportation, but also has sport and recreation functions. Therefore, the bicycle attracted attention in now society gradually. This study uses the rigid-plastic finite element (FE) DEFORMTM software to investigate the plastic deformation behavior of a 7075 aluminum alloy workpiece as it is formed through a ring rolling die. This study systematically investigates the relative influences of ring rolling velocity, entering velocity, and workpiece temperature under various ring rolling forming conditions. The effective strain, effective stress, and workpiece damage distribution in the ring rolling process are also investigated. Results confirm the suitability of the proposed design process, which allows a ring rolling manufacturer to achieve a perfect design during finite element analysis.

Rigid-Plastic Finite Element Analysis of Cross Wedge Rolling

2010 ◽  
Vol 654-656 ◽  
pp. 1610-1613
Author(s):  
Dyi Cheng Chen ◽  
Ci Syong You ◽  
Gua Nying Lai ◽  
Syue Cheng Ji
Keyword(s):  
Finite Element ◽  
Effective Strain ◽  
Rolling Process ◽  
Simulation Software ◽  
Cross Wedge Rolling ◽  
Rigid Plastic ◽  
Element Analysis ◽  
Finite Element Software ◽  
Plastic Deformation Behavior ◽  
Major Factors

In the cross wedge rolling process, many factors must be controlled to obtain the required plastic strain and desired tolerance values. The major factors include the wedge relative velocity, the forming angle, the spreading angle, and sectional reduction. This paper uses rigid-plastic finite element (FE) DEFORMTM 3D software to investigate the plastic deformation behavior of an aluminum alloy (A7075) workpiece as it is processed for cross wedge rolling. This study analyzes the effective strain, the effective stress, and the X-axial load distribution of the workpiece under various rolling conditions. Furthermore, using simulation software to analyze the changes to the microstructure by the rolling process, this study presents analytical results that confirm the suitability of the current finite element software for cross wedge rolling.

Elastic–plastic finite element analysis of cold ring rolling process

2002 ◽  
Vol 125-126 ◽  
pp. 613-618 ◽  
Author(s):  
Hiroshi Utsunomiya ◽  
Yoshihiro Saito ◽  
Tomoaki Shinoda ◽  
Ichiro Takasu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rolling Process ◽  
Ring Rolling ◽  
Element Analysis ◽  
Elastic Plastic ◽  
Cold Ring Rolling ◽  
Ring Rolling Process

Finite Element Analysis of Heterogeneous Sandwich Sheets During Rolling

2009 ◽  
Vol 419-420 ◽  
pp. 285-288
Author(s):  
Dyi Cheng Chen ◽  
Jia Hao Cao ◽  
Yao Chow Liu
Keyword(s):  
Finite Element ◽  
Aluminum Alloy ◽  
Rolled Product ◽  
Effective Strain ◽  
Three Dimensional ◽  
Sheet Thickness ◽  
Rigid Bodies ◽  
Rigid Plastic ◽  
Element Analysis ◽  
Sandwich Sheets

Three-dimensional DEFORMTM finite element simulations are performed to analyze the plastic deformation of heterogeneous sandwich sheets during rolling. The finite element code is based on a rigid-plastic model and the simulations assume that the rollers are rigid bodies and that the deformation-induced change in temperature during rolling is sufficiently small to be neglected. The rolled product is assumed to comprise a central sheet of either A3003 or A6063 aluminum alloy sandwiched between upper and lower sheets of A1100 aluminum alloy. The simulations examine the effects of the sheet thickness and reduction ratio on the maximum effective stress, maximum effective strain, Y-direction load, and maximum damage induced within the rolled product. The simulation results for the final thicknesses of the three layers in the rolled sandwich sheet are compared with the experimental measurements. Overall, the results presented in this study provide a useful insight into the deformation mechanisms involved in the rolling of heterogeneous sandwich sheets.

Study of Forging Forming of 7075 Aluminum Alloy Bicycle Pedal

2012 ◽  
Vol 579 ◽  
pp. 101-108 ◽  
Author(s):  
Dyi Cheng Chen ◽  
Fung Ling Nian ◽  
Jiun Ru Shiu ◽  
Wen Hsuan Ku
Keyword(s):  
Plastic Deformation ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Effective Strain ◽  
High Strength ◽  
Mold Temperature ◽  
Grain Structure ◽  
7075 Aluminum Alloy ◽  
Rigid Plastic ◽  
Plastic Deformation Behavior

Forging is simple and inexpensive in mass production. Metallic materials are processed through plastic deformation. This not only changes the appearance but also changes the internal organization of materials that improve mechanical properties. However, regarding manufacturing of plastic products, many processing factors must be controlled to obtain the required plastic strain and desired tolerance values. In this paper, we employed rigid-plastic finite element (FE) DEFORMTM software to investigate the plastic deformation behavior of an aluminum alloy (A7075) workpiece as it used to forge bicycle pedals. First we use Solid works 2010 3D graphics software to design the bicycle pedal of the mold and appearance, moreover import finite element (FE) DEFORMTM 3D software for analysis. The paper used rigid-plastic model analytical methods, and assuming mode to be rigid body. A series of simulation analyses in which the variables depend on different temperatures of the forging billet, round radius size of ram, punch speed, and mold temperature were revealed to confirm the predicted aluminum grain structure, effective stress, effective strain, and die radial load distribution for forging a bicycle pedal. The analysis results can provide references for forming bicycle pedal molds. Finally, this study identified the finite element results for high-strength design suitability of a 7075 aluminum alloy bicycle pedal.

Sign in / Sign up

Export Citation Format

Share Document