针对棒材轧制过程中芯部存在孔隙性缺陷问题,建立三维有限元数值模型,分析棒材轧制过程中的工艺参数(压下量、摩擦系数、轧件温度、轧制速度等)对棒材芯部质量的影响,为优化轧制规程,提高棒材芯部质量提供依据。 Aiming at the problem of porosity defects in the core during the bar rolling process, a three-dimensional finite element numerical model is established to analyze the process parameters (such as the rolling reduction, the friction coefficient, the rolling temperature and the rolling speed) Bar core quality impact, in order to optimize the rolling rules, to improve the quality of bar core provide the basis.