航天制造技术
航天製造技術
항천제조기술
HANGTIAN ZHIXAO JI SHU
2014年
2期
55-59
,共5页
小曲率%薄壁%钛合金%筒形件%冷滚弯
小麯率%薄壁%鈦閤金%筒形件%冷滾彎
소곡솔%박벽%태합금%통형건%랭곤만
small curvature%thin-walled%titanium alloy%tubular workpiece%cold roll-bending
开展TC4钛合金小曲率薄壁筒形件冷滚弯成形数值模拟研究，建立了TC4钛合金薄板冷滚弯成形三维有限元模型，通过工艺试验，验证了模型的可靠性及稳定性。采用虚拟正交试验分析方法，对滚弯过程中上辊下压量、侧辊移动距离等工艺参数对零件回弹影响进行了分析，得到了各工艺参数对回弹影响的显著性及趋势。
開展TC4鈦閤金小麯率薄壁筒形件冷滾彎成形數值模擬研究，建立瞭TC4鈦閤金薄闆冷滾彎成形三維有限元模型，通過工藝試驗，驗證瞭模型的可靠性及穩定性。採用虛擬正交試驗分析方法，對滾彎過程中上輥下壓量、側輥移動距離等工藝參數對零件迴彈影響進行瞭分析，得到瞭各工藝參數對迴彈影響的顯著性及趨勢。
개전TC4태합금소곡솔박벽통형건랭곤만성형수치모의연구，건립료TC4태합금박판랭곤만성형삼유유한원모형，통과공예시험，험증료모형적가고성급은정성。채용허의정교시험분석방법，대곤만과정중상곤하압량、측곤이동거리등공예삼수대령건회탄영향진행료분석，득도료각공예삼수대회탄영향적현저성급추세。
A study of numerical simulation of the cold roll-bending process of small curvature thin-walled tubular workpieces for TC4 titanium allay is developed. The 3D finite element model for the formation of TC4 sheet has been built. The reliability and stability of this model are validated by experiments. The effect of processing parameters to the springback of thin-walled tubular workpiece is studied comprehensively by the adoption of virtual orthogonal tests. The variational law of the processing parameters is obtained.
