Effect of Planar Anisotropy and Tension-Compression Asymmetry of CP-Ti on its Deep Drawing Behavior at Room Temperature
| Autor: | Xiao Lei Cui, Cheng Zhong Chi, Peng Lin, Bao You Zhang, Yong Gang Hao, Chang Jiang Zhang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Imagination Thesaurus (information retrieval) Materials science Condensed matter physics Mechanical Engineering media_common.quotation_subject 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Asymmetry Planar Mechanics of Materials Tension compression 0103 physical sciences General Materials Science Deep drawing 0210 nano-technology Anisotropy Science technology and society media_common |
| Zdroj: | Materials Science Forum. 913:190-195 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.913.190 |
| Popis: | The planar anisotropy (PA) and tension-compression asymmetry (TCA) of the commercially pure titanium (CP-Ti) were investigated through uniaxial tension and compression experiments at room temperature. By deep drawing experiment, the formability and the earing profile for the CP-Ti were studied at room temperature. The deep drawing simulations using the hardening rules of uniaxial tensile or compression curves were compared with experimental results. The results show that the CP-Ti has obvious PA, and the plastic strain ratiosr0,r45andr90are 1.47, 1.64 and 2.05, respectively. The CP-Ti sheet shows the tension-compression asymmetry of yielding and hardening. The TCA also shows obvious PA. The tension-compression yield strength ratio of 0°, 45° and 90° to the rolling direction are 1.12, 1.08, 1.04, and the tension-compression hardening exponent ratio are 0.86, 0.8 and 0.62, respectively. The simulative results without considering TCA indicate that the forming force, the wall thickness and earing profile are not in good agreement with the experimental ones. Therefore, the earing appeared in 45° is contribution of the PA and TCA. The TCA will reduce the thickness of the deep drawing parts, increase the earing ratio and affect the drawing force. |
| Databáze: | OpenAIRE |
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