Effect of Die Radius and BHF on Formability of the Corner of Box-Shaped Parts in Deep Drawing Processes

Abstract:

Formability of the corner in the deep drawing of box-shaped parts was studied. The forming of box-shaped parts was simulated through numerical simulation software DYNAFORM from the different die radius size of shoulders and corners, the different BHF of straight and curved edges and different materials, etc.. The results shows that, the forming limit height of box-shaped parts increases with the larger the die radius of shoulders and corners, and forming limit height of SS304 in the materials studied is the highest, because it has larger yield strength; If the BHF of straight and curved edges has the constant size, the forming limit height of box-shaped parts will be lower when the BHF increases, while forming limit has a clear upward trend as blank holder force increases in the deep drawing processes which accords with the change law of resistance during the dislocation movement.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 2071-2075
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.2071
• Online since: March 2012
• Authors: Kang Chen, Cheng Yun Peng, Bao Bao Li, Hui Liu
• Keywords: BHF, Box-Shaped Parts, Deep Drawing, Die Radius, Numerical Simulation

References

[1] R. Pearce. 4000 Years of Sheet Metal Forming in Proc. Formability of Materials - 2000A.D., JRNewby and BAHiemeier eds., ASTMSTP753, American Society for Testing and Materials, (1982), pp.3-18.

[2] E Da-xin, PANG Yu-ping and Mizuno Takaji: Journal of Plasticity Engineering Vol. 11(2004), pp.39-42(In Chinese).

[3] Kichan Son and Hyunbo Shim: Journal of Materials Processing Technology Vol. 134(2003), pp.92-98.

[4] E Da-xin and Mizuno Takaji: Materials Science and Technology Vol. 17(2009), pp.351-354(In Chinese).

[5] Danian Wang. Metal Forming Theory. Beijing: Mechanical Industry Press(1982), pp.16-35(In Chinese).