TA12钛合金板材成形性能试验  

Research on the Formability of TA12 Titanium Alloy Sheet

作　　者：方波[1] 程明[2] 陈仲强[1] 刘军和[3] 刘艳[1] 冯贞伟[3] 宋玺玉[1] 魏明霞[1] 胡井祥[1] 

机构地区：[1]中航工业沈阳黎明航空发动机(集团)有限责任公司,沈阳110043 [2]中国科学院金属研究所,沈阳110016 [3]中国人民解放军驻黎明公司军事代表室,沈阳110043

出　　处：《精密成形工程》2011年第4期1-3,共3页Journal of Netshape Forming Engineering

摘　　要：对航空用高温TA12钛合金板材在室温和高温条件下进行杯突和扩孔试验。结果表明:室温条件下,TA12钛合金板材的杯突值IE为3.0 mm左右,扩孔率仅为3%左右;在880℃条件下,杯突值IE增加到4.4 mm,扩孔率提高到13%左右。说明TA12钛合金板材的室温胀形能力和翻边成形性能较差,在高温条件下能够有一定的改善。TA12 titanium alloy is a high temperature alloy for aeronautical industry.The cupping testing method and hole expanding test were carried out for TA12 titanium alloy sheet at room temperature and elevated temperature.The results reveal that the cupping testing IE value is about 3.0 mm and the hole expansion rate is about 3% at room temperature.At the elevated temperature,the cupping testing IE value increases to 4.4 mm and the hole expansion rate increases to 13%.It shows that TA12 titanium alloy sheet exhibits poor cold expanding and flanging formability.The increase of temperature will partly improve the formability of TA12 sheet.

关 键 词：钛合金 成形性能 杯突试验 扩孔试验 

分 类 号：TG146.2[一般工业技术—材料科学与工程]