scholarly journals Finite Element Analysis of Deformation Characteristicsin Three-roll-type and Two-roll-type Ring Rolling Process

2012 ◽  
Vol 53 (613) ◽  
pp. 135-139
Author(s):  
Toshifusa NAKAMIZO ◽  
Morihiko NAKASAKI ◽  
Hiroshi UTSUNOMIYA
2002 ◽  
Vol 125-126 ◽  
pp. 613-618 ◽  
Author(s):  
Hiroshi Utsunomiya ◽  
Yoshihiro Saito ◽  
Tomoaki Shinoda ◽  
Ichiro Takasu

2011 ◽  
Vol 338 ◽  
pp. 251-254
Author(s):  
Xue Bin Zhang ◽  
Qiong Wan ◽  
Zhi Gang Li

A dynamic explicit finite element solver is developed for numerical simulation of metal ring rolling process, which is a complex process of material nonlinearity, geometric nonlinearity and contact nonlinearity. An elastro-plastic dynamic explicit finite element equation and central difference algorithm are used. To control hourglass, a stable matrix hourglass control method is used to ensure energy balance in the simulation. Two-step method of global search and local search is used to reduce the contact judging time. In the elastic-plastic stress updating, tangent forecasting and radical return algorithm are used to eliminate the stress deviate from the yield surface. The accuracy and stability of the solver is verified by comparison of two ring rolling processes with the experimental results.


2012 ◽  
Vol 445 ◽  
pp. 231-236
Author(s):  
Dyi Cheng Chen ◽  
Bao Yan Lai ◽  
Ci Syong You

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.


2019 ◽  
Vol 11 ◽  
pp. 843-848 ◽  
Author(s):  
Prabas Banerjee ◽  
Nirmal Baran Hui

2011 ◽  
Vol 264-265 ◽  
pp. 235-240
Author(s):  
Nassir Anjami ◽  
Ali Basti

Ring rolling process, especially hot rolling is characterized by 3D deformation, continuous change of thickness and height, high nonlinearity, non-steady flow and asymmetry. It involves both mechanical and thermal behaviors. Most mechanical and physical properties and boundary conditions are temperature related. The heat flow and stress analysis cannot be analyzed separately. In this study, both isothermal and coupled thermo-mechanical (CTM) 3D rigid-plastic finite element (FE) models of the hot ring rolling (HRR) process are developed to investigate their differences in accurately and quickly predicting the process. The results show that the latter should be more advantageous to the more accurate prediction and control of microstructure and properties of the ring.


2015 ◽  
Vol 26 ◽  
pp. 03006 ◽  
Author(s):  
A. Pesin ◽  
M. Chukin ◽  
D. Pustovoytov

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