Cup-drawing process of BT20 titanium alloy
来源期刊：中国有色金属学报(英文版)2003年第z1期
论文作者：CHEN Yu(陈 宇) KANG Da-chang(康达昌) XU Yong-chao(徐永超)
文章页码：187 - 190
Key words：BT20 titanium alloy; cup-drawing; conical female die
Abstract: A new cup-drawing process of BT20 titanium alloy was studied. Tensile tests were carried out at room temperature, and then cup-drawing experiments were carried out with conical female die at high temperatures. The results show that the plasticity of BT20 titanium alloy is bad, σs/σb is big, n is small, so it is not suitable for BT20 titanium alloy which draws at room temperature, even if the drawing ratio is very small. As a drawing process without blank holder, cup-drawing with conical female die has many advantages, and is suitable for alloys with bad plasticity drawing at high temperatures. Finally proper technological conditions were gained.
CHEN Yu(陈 宇), KANG Da-chang(康达昌), XU Yong-chao(徐永超)
(School of Materials Science and Engineering,
Harbin Institute of Technology, Harbin 150001, China)
Abstract:A new cup-drawing process of BT20 titanium alloy was studied. Tensile tests were carried out at room temperature, and then cup-drawing experiments were carried out with conical female die at high temperatures. The results show that the plasticity of BT20 titanium alloy is bad, σs/σb is big, n is small, so it is not suitable for BT20 titanium alloy which draws at room temperature, even if the drawing ratio is very small. As a drawing process without blank holder, cup-drawing with conical female die has many advantages, and is suitable for alloys with bad plasticity drawing at high temperatures. Finally proper technological conditions were gained.
Key words:BT20 titanium alloy; cup-drawing; conical female die
