Improvement of the Iterative Algorithm for Numerical Simulation of Springback in Sheet Metal Forming

2010 ◽  
Vol 102-104 ◽  
pp. 1-6 ◽  
Author(s):  
Jun Han ◽  
Fa Zhong Shi ◽  
Li Kang Shao
Keyword(s):  
Numerical Simulation ◽  
Iterative Algorithm ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Iteration Method ◽  
Potential Problem ◽  
Use Of Self ◽  
Numerical Examples

Springback is an inevitable process of sheet metal forming phenomenon. Numerical simulation is an effective way to solve the springback problem, and more and more attention to industry and academia. This paper describes the implicit springback analysis of the BFGS equilibrium iteration method, and proposes a strategy for optimizing the calculation, reducing the computation and avoiding the potential problem of instability in the calculation. At last, the use of self-developed software gives numerical examples.

Multi-Step Forward Finite Element Method for the Numerical Simulation of Sheet Metal Forming

2011 ◽  
Vol 474-476 ◽  
pp. 251-254
Author(s):  
Jian Jun Wu ◽  
Wei Liu ◽  
Yu Jing Zhao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Deep Drawing ◽  
Metal Forming ◽  
Mapping Method ◽  
Constitutive Relationship ◽  
Element Method

The multi-step forward finite element method is presented for the numerical simulation of multi-step sheet metal forming. The traditional constitutive relationship is modified according to the multi-step forming processes, and double spreading plane based mapping method is used to obtain the initial solutions of the intermediate configurations. To verify the multi-step forward FEM, the two-step simulation of a stepped box deep-drawing part is carried out as it is in the experiment. The comparison with the results of the incremental FEM and test shows that the multi-step forward FEM is efficient for the numerical simulation of multi-step sheet metal forming processes.

Optimization for Stamping Process Parameters of Front Fender Based on Numerical Simulation Technology

2010 ◽  
Vol 102-104 ◽  
pp. 232-236 ◽  
Author(s):  
Zhi Feng Liu ◽  
Qi Zhang ◽  
Wen Tong Yang ◽  
Jian Hua Wang ◽  
Yong Sheng Zhao
Keyword(s):  
Numerical Simulation ◽  
Sheet Metal ◽  
Process Parameters ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Simulation Analysis ◽  
Explicit Method ◽  
Simulation Technology ◽  
Stamping Process ◽  
Automotive Panel

According to the characteristic which is more and difficult to determine about the automotive panel forming factors, based on the dynamic explicit method, taking the typical automobile front fender for example, do the simulation analysis by using of DYNAFORM. On the premise of taking springback factors into account, analog the best stamping process parameters has been optimized from the analysis results after simulation such as sheet metal forming limited drawing(FLD)and sheet metal thinning drawing.

Incremental Sheet Metal Forming: Numerical Simulation and Rapid Prototyping Process to make an Automobile White-Body

2011 ◽  
Vol 82 (7) ◽  
pp. 795-805 ◽  
Author(s):  
Nguyen Duc-Toan ◽  
Yang Seung-Han ◽  
Jung Dong-Won ◽  
Choi Tae-Hoon ◽  
Kim Young-Suk
Keyword(s):  
Numerical Simulation ◽  
Rapid Prototyping ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Incremental Sheet Metal Forming

scholarly journals Modelling and Simulation of Sheet Metal Forming Processes

Metals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1356 ◽  
Author(s):  
Marta C. Oliveira ◽  
José V. Fernandes
Keyword(s):  
Numerical Simulation ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Modelling And Simulation ◽  
Forming Process ◽  
Household Appliances ◽  
Indispensable Tool

Numerical simulation of sheet metal forming processes has become an indispensable tool for the design of components and their forming process, in industries ranging from the automotive, to the aeronautics, packing and household appliances [...]

scholarly journals Towards standard benchmarks and reference data for validation and improvement of numerical simulation in sheet metal forming

2002 ◽  
Vol 125-126 ◽  
pp. 798-805 ◽  
Author(s):  
Abel D Santos ◽  
J Ferreira Duarte ◽  
Ana Reis ◽  
A Barata da Rocha ◽  
Luis Menezes ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Reference Data
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