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Abstract：
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The microstructure and mechanical properties of TB2 titanium alloy forging-blank and its extruding-one after tube-spinning were investigated.The deformation-strengthen effect and plastic deformation mechanism of TB2 titanium alloy were also studied.The results show that TB2 titanium alloy cast-ingot can be converted into deformed-structure when forging-rate reaches to 70%.The alloy tubes can be spun smoothly under the condition in which spinning-tem- perature,reduction in thickness at every turn and feed rate are 700℃,20%～30%and 0.5～1.0 mm·r~(-1),respec- tively.The influences of solution temperature and aging temperature on the microstructure and mechanical properties of TB2 titanium alloy were researched with the aid of heat-treatment,and heat-treatment system was optimized and cho- sen,in which solution temperature and aging temperature are 710 and 520℃,respectively.
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Reference：
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[1]汪发春，赵云豪．薄壁壳体变薄旋压成形试验研究[J]．新技术新工艺，2005，(9)：37-38．
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[3]于顺兵．TB2钛合金高压气瓶加工工艺及组织性能的研究[D]．北京：北京有色金属研究总院，2005．
[4]吕成，张立文，牟正君，等．TC4钛合金锻件锻造过程三维热力耦合有限元模拟[J]．锻压技术，2007，32(1)：28-31．
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