Whole Search Method of Space Sub-Domain of Sheet Metal Stamping

2013 ◽  
Vol 675 ◽  
pp. 244-247
Author(s):  
Xiao Ming Jiang ◽  
Chun Lai Hu ◽  
Wang Sheng Liu
Keyword(s):  
Finite Element ◽  
Sheet Metal ◽  
Metal Forming ◽  
Forming Process ◽  
Sheet Metal Stamping ◽  
Stamping Die ◽  
Finite Element Technology ◽  
Metal Stamping ◽  
Metal Forming Process ◽  
Die Forming

In the machining industry, sheet metal stamping is an important method of metal forming, and stamping die forming quality depends on the structure and process design, the use of finite element technology(FEM), computer simulation of sheet metal forming process, forming the law and indicates that there defects in order to achieve the most optimal design. This article describes the increased exposure to whole search to determine the finite element calculation speed and accuracy of a new method— space sub-domain method.

scholarly journals Multi-objective finite element simulations of a sheet metal-forming process via a cloud-based platform

2018 ◽  
Vol 100 (9-12) ◽  
pp. 2753-2765 ◽  
Author(s):  
Ailing Wang ◽  
Omer El Fakir ◽  
Jun Liu ◽  
Qunli Zhang ◽  
Yang Zheng ◽  
...  
Keyword(s):  
Finite Element ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Finite Element Simulations ◽  
Forming Process ◽  
Multi Objective ◽  
Metal Forming Process

scholarly journals Experimental And Theoretical Determination Of Forming Limit Curve

2015 ◽  
Vol 60 (3) ◽  
pp. 1881-1886
Author(s):  
J. Adamus ◽  
K. Dyja ◽  
M. Motyka
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Fracture Initiation ◽  
Forming Limit ◽  
Forming Process ◽  
Element Analysis ◽  
Metal Forming Process

Abstract The paper presents a method for determining forming limit curves based on a combination of experiments with finite element analysis. In the experiment a set of 6 samples with different geometries underwent plastic deformation in stretch forming till the appearance of fracture. The heights of the stamped parts at fracture moment were measured. The sheet - metal forming process for each sample was numerically simulated using Finite Element Analysis (FEA). The values of the calculated plastic strains at the moment when the simulated cup reaches the height of the real cup at fracture initiation were marked on the FLC. FLCs for stainless steel sheets: ASM 5504, 5596 and 5599 have been determined. The resultant FLCs are then used in the numerical simulations of sheet - metal forming. A comparison between the strains in the numerically simulated drawn - parts and limit strains gives the information if the sheet - metal forming process was designed properly.

Finite Element Modelling in Ultrasonic Sheet Metal Forming

2012 ◽  
Vol 445 ◽  
pp. 3-8 ◽  
Author(s):  
Yusof Daud ◽  
Margaret Lucas ◽  
Khairur Rijal Jamaludin
Keyword(s):  
Finite Element ◽  
Sheet Metal ◽  
Ultrasonic Vibration ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Fe Model ◽  
Forming Process ◽  
Interface Friction ◽  
Metal Forming Process ◽  
Previous Experimental Study

Finite element (FE) model of die necking process of an aluminium hollow thin cylinder has been developed. The input parameters of material properties and coefficient of friction, µ for the model have been deducted from our previous experimental study. Later the models have been validated against experimental data as reported in the previous studies. For the die necking process, the FE model has successfully to predict how much the original diameter of the aluminium hollow cylinder can be maximised necked with and without applying ultrasonic vibration. FE models showed that the application of ultrasonic vibration during the necking process has reduced buckling of the cylinder body if compared to the necking process without ultrasonic. The benefit of applying ultrasonic vibration in sheet metal forming process has been related to the reduction of interface friction between die and specimen.

Comparisons of Explicit and Implicit Finite Element Methods for Sheet Metal Forming

2014 ◽  
Vol 936 ◽  
pp. 1836-1839 ◽  
Author(s):  
Lei Chen
Keyword(s):  
Finite Element ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Explicit Method ◽  
Forming Process ◽  
The Past ◽  
Simulation Speed ◽  
Metal Forming Process ◽  
Complex Parts

Sheet metal forming is one of the most commonly practiced fabrication processes in industry. Numerical simulations of the complex parts are possible by finite element method in the past thirty years. The most important problem of the simulation is the reliability of the model. Static implicit method (SI) and dynamic explicit method (DE) were used to simulation sheet metal forming process. It was found that simulation speed in dynamic explicit software has large effect on the simulation results. The best simulation speed is 5~10 m/s. Compared with the simulation and experimental results of thickness, draw-in and CPU time, the DE method is preferred.

Dynamic analysis of electromagnetic sheet metal forming process using finite element method

2014 ◽  
Vol 74 (1-4) ◽  
pp. 361-368 ◽  
Author(s):  
Quanliang Cao ◽  
Liang Li ◽  
Zhipeng Lai ◽  
Zhongyu Zhou ◽  
Qi Xiong ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Analysis ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Forming Process ◽  
Metal Forming Process ◽  
Element Method
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