Numerical Simulation of Non-Circular Hole Joint Precision Forming

2009 ◽  
Vol 16-19 ◽  
pp. 462-465
Author(s):  
Yong Fei Gu ◽  
Jun Ting Luo
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Circular Hole ◽  
Developed Countries ◽  
Forming Process ◽  
Backward Extrusion ◽  
Forming Technology ◽  
Plastic Forming ◽  
And Performance

The precision forming technology developed rapidly during passing two decades, however technologies of precision plastic forming the parts with deeper hole are far behind developed countries. The warm backward extrusion-ironing forming technology was presented for precision forming of non-circular hole joint in this paper. The forming process and parameter variable trend were simulated by finite element method, which the software MSC.Marc was applied. The forming die was designed and the forming experiment was finished. The products were deserved with good quality and performance. The feasibility of the forming technology is proved by experimental results and numerical simulation.

Numerical Simulation on Spinning Forming Process of Automotive Wheel Rim

2011 ◽  
Vol 704-705 ◽  
pp. 1458-1464
Author(s):  
Da Sen Bi ◽  
Guang Yang ◽  
Liang Chu ◽  
Jian Zhang ◽  
Zhi Hua Wang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Technological Parameter ◽  
Reference Data ◽  
Forming Process ◽  
Finite Element Software ◽  
Wheel Rim ◽  
Spinning Process ◽  
Deform 3D

In this paper, the spinning process of automotive wheel rim is simulated with the finite element software DEFORM-3D. The forming of the automotive wheel rim based on finite element method is completed by the improvement of the spinning process. it can be divided into three different stages: spinning stage, flattening stage and shaping stage. The reference data for technological parameter of spinning process is achieved.The results are useful to the further research of the spinning process of automotive wheel rim.

Numerical Simulation Optimization Research of Cold Extrusion Forming for Injection Head

2013 ◽  
Vol 706-708 ◽  
pp. 444-447
Author(s):  
Qing Qing Lv ◽  
Li Quan Yang ◽  
Xiu Ting Lv ◽  
Lei Zhao ◽  
Xi Kui Wang
Keyword(s):  
Numerical Simulation ◽  
Treatment Process ◽  
Cold Extrusion ◽  
Finite Element Models ◽  
Forming Process ◽  
Backward Extrusion ◽  
Forward Extrusion ◽  
Forming Technology ◽  
Pre Treatment ◽  
Extrusion Forming

In order to obtain high-quality injection head, cold extrusion forming is adopted. Based on the study of forming technology for the injection head, reasonable process flow, cold extrusion pre-treatment process and boundary conditions are designed. Two finite element models in forward extrusion and backward extrusion forming ways are established. Taking DEFORM as the platform, the numerical simulation of forming process is carried out. Through simulation, the distribution of strain field, stress field and velocity field in the process of cold extrusion forming is preliminarily forecast, the merits and defects of two kinds of forming processes and the force state of mold are compared , the optimal forming scheme is determined.

Numerical Simulation of Hydro-Forming Cylindrical Cup with a Hemispherical Bottom

2011 ◽  
Vol 460-461 ◽  
pp. 32-35
Author(s):  
Wei Hua Kuang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Simulation Model ◽  
Sheet Metal ◽  
Drawing Process ◽  
Forming Process ◽  
Forming Accuracy ◽  
Safe Limit ◽  
Cylindrical Cup

In order to improve the hydro-forming accuracy, the process parameter’s effect on the technology was studied by using finite element method. The numerical simulation model of the forming process was established. The deformation and thinning were studied. The FLD was used to determine the safe limit of the sheet metal operation. FLD showed that the cylindrical hydro-drawing process could be successfully done in one stroke.

Study of Forging Process of Yttrium-Modified A356 Aluminum Alloy and Numerical Simulation by Thermo-Viscoplastic Finite Element Method

2016 ◽  
Vol 701 ◽  
pp. 177-181 ◽  
Author(s):  
Heng Keong Kam ◽  
Chan Chin Wang ◽  
Ying Pio Lim ◽  
Wen Chiet Cheong
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Solid State ◽  
A356 Aluminum Alloy ◽  
Backward Extrusion ◽  
A356 Aluminum ◽  
Semi Solid ◽  
Element Method

In this study, A356 aluminum alloy was heated up to semi-solid state and used as a billet for forward and backward extrusion. The workpiece will undergo solidification at the contact between billet and the tools when the material flowing through the die cavity during the semi-solid extrusion. The plasticity of A356 with 0.3wt% Y at semi-solid state was investigated by performing compression test. A numerical simulation code based on thermo-viscoplastic finite element method was developed to simulate the material flow and study the yttrium-modified A356 aluminum alloy under forward and backward extrusion. A minimum average punch strain rate is proposed for semi-solid extrusion.

scholarly journals Numerical Simulation of Forming Process of Glass-Lens Using Finite Element Method

2006 ◽  
Vol 72 (717) ◽  
pp. 683-690 ◽  
Author(s):  
Masahiro ARAI ◽  
Kazuya YAMAMOTO ◽  
Junnosuke NAKAMURA ◽  
Hiroaki ITO ◽  
Toshiaki MATSUKURA ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Forming Process ◽  
Glass Lens ◽  
Element Method

The study of the elastic deformation of a flexible wheel by a cam wave generator

2020 ◽  
Vol 65 (1) ◽  
pp. 51-58
Author(s):  
Sava Ianici
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Elastic Deformation ◽  
Theoretical Study ◽  
Elastic Field ◽  
The Finite Element Method ◽  
Elastic Deformations ◽  
Wave Generator ◽  
Two Stages

The paper presents the results of research on the study of the elastic deformation of a flexible wheel from a double harmonic transmission, under the action of a cam wave generator. Knowing exactly how the flexible wheel is deformed is important in correctly establishing the geometric parameters of the wheels teeth, allowing a better understanding and appreciation of the specific conditions of harmonic gearings in the two stages of the transmission. The veracity of the results of this theoretical study on the calculation of elastic deformations and displacements of points located on the average fiber of the flexible wheel was subsequently verified and confirmed by numerical simulation of the flexible wheel, in the elastic field, using the finite element method from SolidWorks Simulation.

Metal Forming and the Finite-Element Method

1989 ◽  
Author(s):  
Shiro Kobayashi ◽  
Soo-Ik Oh ◽  
Taylan Altan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Metal Forming ◽  
Computer Aided Design ◽  
The Finite Element Method ◽  
Forming Technology ◽  
Computer Aided ◽  
Deformation Mechanics ◽  
Aided Design ◽  
Element Method

The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modeling for the determination of deformation mechanics has been a major concern in research . In light of these developments, the finite element method--a technique by which an object is decomposed into pieces and treated as isolated, interacting sections--has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.

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