中文摘要：

目的揭示工艺参数对钛合金锥形件柔性加热旋压成形过程的影响。方法采用基于ABAQUS平台建立的TA15钛合金柔性热旋有限元仿真模型和基于正交试验设计的模拟方案,研究了芯模预热温度、工件加热温度、旋轮与芯模间隙和旋轮进给比对该过程中,工件的切向拉应变和壁厚差的影响显著性与规律。结果获得了合理的工艺参数组合与回归方程。结论较小的旋轮进给比有利于抑制工件的破裂;适中的工件加热温度有利于获得较为均匀的壁厚。

英文摘要：

Objective In order to reveal the effects of process parameters on the forming process of hot spinning of titanium alloy. Methods A finite element model for flexible hot spinning process of TA15 alloy was established based on ABAQUS software,and orthogonal simulation scheme was designed to analyze the significance and law of influences of preheating temperature of mandrel,spinning temperature of workpiece,gap between roller and mandrel and feed rate on the tangential tensile strain and the wall- thickness difference of workpiece. Results Reasonable optimization of parameters and regression equation were obtained. Conclusion Small feed rate could help suppress the fracture of workpiece. Moderate spinning temperature was beneficial to uniform wall- thickness.