Formability of stamping magnesium-alloy AZ31 sheets
Formability of stamping magnesium-alloy AZ31 sheets
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DOI：
10.1016/s0924-0136(03)00684-8
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发表时间：
2003-12
影响因子：
6.3
通讯作者：
F. Chen;Tyng-Bin Huang
中科院分区：
文献类型：
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作者：
F. Chen;Tyng-Bin Huang
本文对镁合金AZ31板材的高温冲压成形性能进行了研究。实验结果表明，AZ31板材在室温下的成形性能较差，但在高温下的成形性能得到了显著改善。当AZ31板材在较高温度下冲压时，回弹也减小。此外，通过锥形杯值（CCV）试验发现，存在一个最佳成形温度，该温度低于400°C，在实际成形过程中应采用较低的成形温度。实验结果为AZ31板材的冲压模具设计提供了依据。
In the present study, the formability of stamping magnesium-alloy AZ31 sheets at elevated temperatures was investigated by conducting various experiments. The experimental results indicate that AZ31 sheets exhibit poor formability at room temperature, but the formability is improved significantly at elevated temperatures. Also the springback is reduced when AZ31 sheets are stamped at higher temperatures. In addition, the conical cup value (CCV) tests performed in the present study reveal that an optimum forming temperature, which is below 400°C, exists, and a lower forming temperature should be applied in the actual forming process. The experimental results obtained in the present study provide the fundamentals for the stamping die design of forming AZ31 sheets.