塑性工程学报
塑性工程學報
소성공정학보
JOURNAL OF PLASTICITY ENGINEERING
2014年
3期
41-45
,共5页
宇航钣金材料%成形极限图%计算模型
宇航鈑金材料%成形極限圖%計算模型
우항판금재료%성형겁한도%계산모형
aerospace sheet metal materials%FLD%calculating models
对常用宇航钣金材料不锈钢1Cr18Ni9Ti、铝合金7A09、5A06、2A14、2A12及钛合金TC4进行成形极限的实验研究，得到1Cr18Ni9Ti、2A14、5A06及2A12室温下的 FLD ，并建立其 FLD计算模型。实验结果表明，1Cr18Ni9Ti室温下的成形性能明显高于2A12、2A14和5A06，且金属板料厚度对其成形极限影响较大，板料越薄，成形极限越低。铝合金7A09及钛合金TC4在室温下的塑性成形性能极差，无法得到其室温下的FLD。
對常用宇航鈑金材料不鏽鋼1Cr18Ni9Ti、鋁閤金7A09、5A06、2A14、2A12及鈦閤金TC4進行成形極限的實驗研究，得到1Cr18Ni9Ti、2A14、5A06及2A12室溫下的 FLD ，併建立其 FLD計算模型。實驗結果錶明，1Cr18Ni9Ti室溫下的成形性能明顯高于2A12、2A14和5A06，且金屬闆料厚度對其成形極限影響較大，闆料越薄，成形極限越低。鋁閤金7A09及鈦閤金TC4在室溫下的塑性成形性能極差，無法得到其室溫下的FLD。
대상용우항판금재료불수강1Cr18Ni9Ti、려합금7A09、5A06、2A14、2A12급태합금TC4진행성형겁한적실험연구，득도1Cr18Ni9Ti、2A14、5A06급2A12실온하적 FLD ，병건립기 FLD계산모형。실험결과표명，1Cr18Ni9Ti실온하적성형성능명현고우2A12、2A14화5A06，차금속판료후도대기성형겁한영향교대，판료월박，성형겁한월저。려합금7A09급태합금TC4재실온하적소성성형성능겁차，무법득도기실온하적FLD。
The FLDs of the aerospace sheet metal materials of 1Cr18Ni9Ti stainless steel ,7A09、5A06、2A14、2A12 aluminum alloy and TC4 titanium alloy are studied by the experiments . The FLD calculating models of 1Cr18Ni9Ti ,5A06 ,2A14 and 2A12 are established based on the experimental data . The experimental study shows that the formability of 1Cr18Ni9Ti is much better than those of 5A06 ,2A14 and 2A12 under room temperature ,also the thickness of the sheet metal affects its forming limitation a lot . The thinner the sheet is , the lower of the forming limitation becomes . The formability of 7A09 aluminum alloy and TC4 titanium alloy are too bad to obtain their FLD under room temperature .
