Deep Drawing of Titanium Alloy TC4 Sheet at Hot Temperatures
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2009年第S1期
论文作者：郭斌 孙圣迪
文章页码：128 - 131
摘 要：The true strain-stress curves of TC4 titanium sheet were obtained by uniaxial tensile tests under different experimental conditions,and the effects of forming temperature and strain speed on the rheological stress and hot deforming capacity were analyzed.The Forming experience for titanium alloy TC4 sheet with 1mm thickness was executed to investigate the hot forming technology of Thin-walled cylindrical cup of titanium alloy.The results showed that the softening mechanism was dynamic re-crystallization,flow curves of the TC4 alloy were characterized by a linear increase until regular single peak after which flow softening was observed.And the flow stress decreased with increasing temperature and decreasing strain rate.as the forming temperature increased,the limit drawing coefficient would decreased first and then increased,there would be a minimum 0.461 when the temperature was 770 ℃,springback would be becoming smaller,but phenomenon of lug do not Significant improvement.
郭斌，孙圣迪
School of Materials Science & Engineering,Harbin Institute of Technology
摘 要：The true strain-stress curves of TC4 titanium sheet were obtained by uniaxial tensile tests under different experimental conditions,and the effects of forming temperature and strain speed on the rheological stress and hot deforming capacity were analyzed.The Forming experience for titanium alloy TC4 sheet with 1mm thickness was executed to investigate the hot forming technology of Thin-walled cylindrical cup of titanium alloy.The results showed that the softening mechanism was dynamic re-crystallization,flow curves of the TC4 alloy were characterized by a linear increase until regular single peak after which flow softening was observed.And the flow stress decreased with increasing temperature and decreasing strain rate.as the forming temperature increased,the limit drawing coefficient would decreased first and then increased,there would be a minimum 0.461 when the temperature was 770 ℃,springback would be becoming smaller,but phenomenon of lug do not Significant improvement.
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