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将铸态Ti-35V-15Cr-0.3Si-0.1C阻燃钛合金高温变形时的流动应力耦合到DEFORM-2D软件中,对该合金大规格铸锭包套挤压过程进行了热力耦合数值模拟,获得了不同加热温度、变形速度、摩擦因子和模角结构下工件温度场、等效应力场和等效应变场,分析了不同变形下的载荷位移曲线。结果表明,提高变形温度、降低变形速度、增大钛合金铸锭与钢包套之间摩擦因子、减小钢包套与模具间摩擦因子、减小模角有利于包套挤压过程的完成。
The flow stress of the as-cast Ti-35V-15Cr-0.3Si-0.1C flame-retardant titanium alloy was coupled into the DEFORM-2D software, and the thermal coupling numerical simulation The temperature field, equivalent stress field and equivalent strain field under different heating temperature, deformation rate, friction factor and mode angle were obtained. The load displacement curves under different deformations were analyzed. The results show that increasing the deformation temperature, reducing the deformation speed, increasing the friction factor between the titanium alloy ingot and the ladle, reducing the friction factor between the ladle and the mold, and reducing the mold angle are favorable for the completion of the lamination extrusion process.