Thermomechanical coupled numerical simulation of GH4169 alloy for cross wedge rolling
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摘要: 采用有限元軟件DEFORM-3D對GH4169合金的楔橫軋成形進行了熱力耦合數值模擬,得到了GH4169合金軋件的金屬流動情況、溫度場的分布規律以及軋件與軋輥間的軋制力和力矩,并與45#鋼進行了對比分析.結果表明:在楔橫軋成形中,GH4169合金軋件的軸向金屬流動規律不同于45#鋼,其外層金屬的軸向流動大幅度滯后于心部;各力能參數都要大于45#鋼,且最高為45#鋼的2.15倍;變形溫度始終高于45#鋼,最高溫升比45#鋼多6.21%.Abstract: Thermal-mechanical coupled numerical simulation of GH4169 alloy during cross wedge rolling(CWR) was carried out using the finite element software DEFORM-3D.The metal flowing and temperature distribution of rolled pieces,and the rolling force and torque between the rolled piece and the roller were obtained and comparatively analyzed with 45# steel.The results show that the axial metal flowing of GH4169 during CWR is different from that of 45# steel,and the axial metal flowing at the surface substantially lags behind that at the center.All the energetic parameters are much greater than 45# steel's,and the maximum value is 2.15 times that of 45# steel.Meantime the deformation temperature is always higher than 45# steel's,and the maximum temperature rise is 6.21% more than that of 45# steel.
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