CAJ | 학술논문

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。
목적：게시공예삼수대태합금추형건유성가열선압성형과정적영향。방법채용기우ABAQUS 평태건립적 TA15태합금유성열선유한원방진모형화기우정교시험설계적모의방안，연구료심모예열온도、공건가열온도、선륜여심모간극화선륜진급비대해과정중，공건적절향랍응변화벽후차적영향현저성여규률。결과획득료합리적공예삼수조합여회귀방정。결론교소적선륜진급비유리우억제공건적파렬；괄중적공건가열온도유리우획득교위균균적벽후。
Objective In order to reveal the effects of process parameters on the forming process of hot spinning of tita-nium 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 pre-heating 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.