A finite element analysis of the superplastic blow-forming in an awl-shaped die with titanium alloy

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A finite element analysis of the superplastic blow-forming in an awl-shaped die with titanium alloy

Dyi-Cheng Chen, Hsin-Neng Wang

Department of Industrial Education and Technology, National Changhua University of Education, Changhua 500, Taiwan, R.O.C..

DOI:

https://doi.org/10.7494/cmms.2008.3.0198

Abstract:

This study employs commercial DEFORMTM 3D finite element analysis software to simulate the superplastic blowforming of Ti-6Al-4V titanium alloy sheet into triangular, square and conical awl-shaped dies. In performing the simulations, the die model is constructed using 3D solid elements and the titanium sheet is assumed to be a rigid-plastic material with homogeneous and isotropic properties. The simulations focus specifically on the respective effects of the shear friction, the sheet thickness, and the damage value criterion on the distributions of the effective stress, effective strain, damage, and deformation velocity within the blow-formed products. Overall, the simulation results confirm the suitability of DEFORMTM 3D software for modeling the superplastic blow-forming of titanium alloy sheets into awl-shaped dies with various geometries.

Cite as:

Chen, D., Wang, H., (2008). A finite element analysis of the superplastic blow-forming in an awl-shaped die with titanium alloy. Computer Methods in Materials Science, 8(3), 130 – 137. https://doi.org/10.7494/cmms.2008.3.0198

Article (PDF):

Keywords:

Uperplastic blow-forming, Awl-shaped dies, Damage, Titanium alloy

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