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摘要：
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采用模内加热的方式，研究了不同加热温度和工艺条件下0.8 mm厚Ti-6Al-4V高强钛合金板的拉深成形情况，探讨了不同因素对Ti-6Al-4V高强钛合金薄板的拉深成形影响。结果表明：温度是影响Ti-6Al-4V高强钛合金板拉深成形的关键因素，随着温度的升高，材料的拉深性能提高，在800 ℃时，极限拉深比达到最大值，较临界拉深温度300 ℃时的极限拉深比提高了45.86%，极限拉深尺寸提高了45.45%；随着温度的升高，拉深件的减薄率降低，厚度更加均匀。此外，压边力、润滑条件和冲压速度的变化对Ti-6Al-4V高强钛合金板的成形情况也具有较大影响。
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The deep drawing of Ti-6Al-4V high strength titanium alloy sheet with thickness of 0.8 mm under different heating temperatures and process conditions was studied by heating in the die, and the influences of different factors on deep drawing of Ti-6Al-4V high strength titanium alloy sheet were discussed. The results show that the temperature is the key factor affecting the deep drawing of Ti-6Al-4V high strength titanium alloy sheet. However, with the increasing of temperature, the drawing performance of material improves. At 800 ℃, the limiting drawing ratio reaches the maximum value which is 45.86% higher than that at the critical drawing temperature of 300 ℃, and the limiting drawing size increases by 45.45%. Furthermore, with the increasing of temperature, the thinning rate of drawing parts decreases, and the distribution of thickness becomes more uniform. In addition, the deep drawing of Ti-6Al-4V high strength titanium alloy sheet is also affected by the changes of blank holder force, lubrication conditions and stamping speed.
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基金项目：
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国家自然科学基金资助项目（51805315）
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作者简介：
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邵威（1995-），男，硕士研究生，E-mail：1024958079@qq.com；通讯作者：邓沛然（1970-），男，博士，讲师，E-mail：peirandeng@126.com
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参考文献：
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