Comparison of Different Extrapolation Models for Materials in the Closed-Extruding Fine Blanking Simulation

Ming Deng; Jiang Po Niu; Yi Long Ma; Lin Lv

doi:10.4028/www.scientific.net/AMR.1145.123

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1145Comparison of Different Extrapolation Models for...

Comparison of Different Extrapolation Models for Materials in the Closed-Extruding Fine Blanking Simulation

Abstract:

The selection of the flow stress model of materials has a great influence on the plastic forming simulation of metal. For closed extrusion fine blanking, selecting the accurate and appropriate material flow stress model can make the finite element simulation closer to the real situation, and the simulation data is more reliable. In order to solve the accuracy problem of finite element simulation closed-extruding fine blanking, 5 types of flow stress fitting curve equations were obtained based on the data of sheet metal tensile test. With the secondary development of finite element software Deform-2D, the circular piece of closed-extruding fine blanking forming process was simulated, whose diameter is 14 mm and thickness is 30 mm. The simulation results of different rheological models were compared after physical experiment being carried out.The results show that Ludwik extrapolation rheological model is suitable for finite element simulation of closed-extruding fine blanking technology, which effectively improves closed-extruding fine blanking simulation accuracy. Lay the foundation for the application of closed-extrusion fine blanking in industry.

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Periodical:

Advanced Materials Research (Volume 1145)

Pages:

123-128

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1145.123

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Online since:

March 2018

Authors:

Ming Deng, Jiang Po Niu*, Yi Long Ma, Lin Lv

Keywords:

Closed-Extruding Fine Blanking, Finite Element, Flow Stress, Rheological Model

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* - Corresponding Author

References

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