Simulation of Ring Blank Drawing by Finite Element Method

2012 ◽  
Vol 479-481 ◽  
pp. 102-110
Author(s):  
Tatsuki Igarashi ◽  
Yukihiro Ito ◽  
Wataru Natsu ◽  
Toshihiko Kuwabara
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Bottom Part ◽  
Forming Simulation ◽  
Inside Diameter ◽  
The Press ◽  
Proportional Relationship ◽  
Shaped Blank ◽  
Formed Product ◽  
Ring Blank

Ring-shaped oil seals used in automobiles are usually manufactured by the press drawing and the press blanking considering the shape and the use application. In this process of manufacturing, the material availability is quite low because the central region part is cut from the product and becomes the waste material. We propose the forming method by the press drawing using a ring-shaped blank for the metallic part of the oil seal in order to improve the material availability and reduce the number of processes. In this research, the forming accuracy using the ring-shaped blank was investigated by the forming simulation. As the result, when the knockout was fixed in order to generate the sufficient bottoming by the punch, it was found that the bottom part can be formed flatly and the angle part can be formed almost right. Furthermore, it was found that the inside diameter of the formed product is proportional to the inside diameter of the blank except the case when the bottom part of the formed product is small. Hence, the required inside diameter of the ring-shaped blank can be calculated with the proportional relationship.

scholarly journals Modelling by Finite Element Method of the twin-screw of a press for obtaining grape seed oil

2019 ◽  
Vol 112 ◽  
pp. 03022
Author(s):  
Carmen Vasilachi ◽  
Sorin-Stefan Biriş
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Seed Oil ◽  
Grape Seed ◽  
Screw Press ◽  
The Finite Element Method ◽  
Grape Seed Oil ◽  
The Press ◽  
Twin Screw ◽  
Element Method

This paper is about getting grape seed oil using a twin-screw press. Grape seed oil is a by-product of the wine industry due to the need to reduce the amount of waste, but at the same time it has been found that this oil is an excellent ingredient that can be used in many industries. It is assumed that the use of twin-screw is more efficient than single-screw extraction due to the larger pressures that are created inside the press chamber. This study focuses on the finite element method analysis of how the press process is carried out. Using the finite element method, we can get an overview of how the pressure acts on the sides of the twin-screw, how it influences the temperature but also other process factors. When we have all these, we can begin optimizing the twin-screw press process.

scholarly journals Forming simulation of thermoplastic pre-impregnated textile reinforcement by finite element method

2014 ◽  
Vol 80 (820) ◽  
pp. SMM0354-SMM0354 ◽  
Author(s):  
Masato NISHI ◽  
Tetsushi KABURAGI ◽  
Masashi KUROSE ◽  
Tei HIRASHIMA ◽  
Tetsusei KURASHIKI
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Forming Simulation ◽  
Element Method

scholarly journals Degradation of the State of a Ball Track at the ZP 6600

2017 ◽  
Vol 25 (1) ◽  
pp. 68-75
Author(s):  
Petr Klouda ◽  
Vlastimil Moni ◽  
Jan Blata ◽  
Lubomír Donát ◽  
František Helebrant
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Computation ◽  
The State ◽  
Mining Machine ◽  
Bottom Part ◽  
Element Method

Abstract The article deals with the examination of the state of the ball track of the heavy mining machine ZP6600/Z79. It gives results of material exams which were taken on given samples and describes the progress and results of the numerical computation of the state of tenseness by finite element method of the bottom part of the ball track when it touches the ball.

Localized metal forming simulation by r-s-adapted arbitrary Lagrangian-Eulerian finite element method

1997 ◽  
Vol 32 (4) ◽  
pp. 237-252 ◽  
Author(s):  
S Ghosh ◽  
S Raju
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Strain Localization ◽  
Metal Forming ◽  
Constitutive Relations ◽  
Arbitrary Lagrangian Eulerian ◽  
Localized Deformation ◽  
Forming Simulation ◽  
Ductile Materials ◽  
Element Method

In this paper, an adaptive arbitrary Lagrangian—Eulerian (ALE) large deformation finite element method (FEM) is developed for solving metal forming problems with strain localization. The ALE mesh movement is coupled with r-adaptation of automatic node relocation to minimize mesh distortion during the process of deformation. A strain localization phenomenon is incorporated through constitutive relations for porous ductile materials. Prediction of localized deformation is achieved through a multilevel mesh superimposition method, called s-adaptation. A few metal forming problems are simulated to test the effectiveness of this model.

A Temperature Field Analysis for Contraction and Collapse of 72AU2 Hot-Rolled Steel

2015 ◽  
Vol 817 ◽  
pp. 653-660
Author(s):  
Han Jiang Hu ◽  
Ai Min Zhao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Temperature Field ◽  
Field Analysis ◽  
Maximum Temperature ◽  
Field Calculation ◽  
Inside Diameter ◽  
Distance Position ◽  
Hot Rolled ◽  
Element Method

Hot rolled coil after winding cooled to room temperature in the storage room often takes 4 to 5 days. The process of coil cooling sometimes produces collapse defects in industrial applications. In this research, the cooling process after coiling of Shougang Group 72AU2 hot-rolled strip steel was taken as the research material. We used finite element method (FEM) software ABAQUS to analyze the temperature field of coil after coiling. At first, a temperature field model of hot-rolled coil during cooling was established by the finite element method. The simulation results show that, the maximum temperature difference is 206°C, when the cooling-time is about 50th min. The highest temperature node was about at 44% apart from inside diameter distance position in the thickness direction, and finally moved to the node which is at 26% apart from inside diameter distance position. Temperature field calculation considered the anisotropy of the heat transfer. The temperature of each node can be obtained by this simulation, which cannot be obtained from field measurements and experiments. Thereby this research has a significant impact on further research on the causes of the contraction and collapse.

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