TY - GEN
T1 - Effects of heating temperatures on hot spinning of TA15 alloy thin-walled shell
AU - Zhan, Mei
AU - Li, Tian
AU - Yang, He
AU - Wang, Qiaoling
AU - Li, Hu
PY - 2012
Y1 - 2012
N2 - Titanium alloy thin-walled shells, formed by hot spinning, have been attracting more and more applications in aerospace, aviation, military and other technical industries, due to its highly forming precision and satisfyingly increasing needs for thin-walled and high strength/weight ratio products. The hot spinning of titanium alloy thin-walled shells is a complex multi-physics problem with multi-factor coupling interactive effects, and the heating temperatures have significant influences on the spinning qualities of workpieces. Therefore, in this study, using a 3D elastic-plastic finite element (FE) model for the hot spinning of TA15 alloy thin-walled shell, the influence laws of preheating temperature of mandrel and heating temperature of blank on forming qualities are revealed. The results show that: preheating temperature of mandrel and heating temperature of blank have significant influence on maximum tangential tensile stress. With the increasing of preheating temperature of mandrel and heating temperature of blank, the tangential tensile stress first decreases then increases The reasonable preheating temperature and the heating temperature are about 400°C and 750°C respectively. Finally, the satisfied workpieces are obtained with the above parameters. The results may provide a theoretical guide for the determination and optimization of forming temperature of relative spinning process.
AB - Titanium alloy thin-walled shells, formed by hot spinning, have been attracting more and more applications in aerospace, aviation, military and other technical industries, due to its highly forming precision and satisfyingly increasing needs for thin-walled and high strength/weight ratio products. The hot spinning of titanium alloy thin-walled shells is a complex multi-physics problem with multi-factor coupling interactive effects, and the heating temperatures have significant influences on the spinning qualities of workpieces. Therefore, in this study, using a 3D elastic-plastic finite element (FE) model for the hot spinning of TA15 alloy thin-walled shell, the influence laws of preheating temperature of mandrel and heating temperature of blank on forming qualities are revealed. The results show that: preheating temperature of mandrel and heating temperature of blank have significant influence on maximum tangential tensile stress. With the increasing of preheating temperature of mandrel and heating temperature of blank, the tangential tensile stress first decreases then increases The reasonable preheating temperature and the heating temperature are about 400°C and 750°C respectively. Finally, the satisfied workpieces are obtained with the above parameters. The results may provide a theoretical guide for the determination and optimization of forming temperature of relative spinning process.
KW - Coupled thermal-mechanical
KW - Heating temperature
KW - Hot spinning
KW - Preheating temperature
KW - Titanium alloy thin-walled shell
UR - http://www.scopus.com/inward/record.url?scp=84883084790&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:84883084790
SN - 9787030338945
T3 - Ti 2011 - Proceedings of the 12th World Conference on Titanium
SP - 1783
EP - 1786
BT - Ti 2011 - Proceedings of the 12th World Conference on Titanium
T2 - 12th World Conference on Titanium, Ti 2011
Y2 - 19 June 2011 through 24 June 2011
ER -