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利用Gleeble-1500热模拟试验机对23Co13Ni11Cr3Mo超高强度钢进行了热压缩试验,建立了材料流变应力模型,采用Deform3D有限元软件对其模锻件锻造成形过程进行数值模拟,研究了不同工艺参数对锻件成形的影响。结果表明:适当增加变形温度,可有效降低材料的变形抗力,增强材料在模腔中的流动性;摩擦因子的减小,能够降低成形载荷,改善难变形区域的成形,使变形更为均匀;变形速率影响锻件的温升,其合理选择对锻件成形有一定影响。
The hot compressive tests of 23Co13Ni11Cr3Mo ultra-high strength steel were carried out by Gleeble-1500 thermal simulation machine. The flow stress model of the material was established. Deform3D finite element software was used to simulate the forging process. The effects of different process parameters Forging forming impact. The results show that increasing the deformation temperature can effectively reduce the deformation resistance of the material and enhance the fluidity of the material in the mold cavity. The decrease of the friction factor can reduce the forming load, improve the forming of the difficult deformation area and make the deformation more uniform. Deformation rate affects the temperature rise of forging, and its reasonable choice has a certain influence on forging forming.