货叉扁钢精轧过程金属流动规律的数值模拟

Numerical Simulation of Metal Flow Law of Fork Flat Steel during Finishing Rolling Process

为了更好地控制货叉扁钢的尺寸精度,省去后续加工,根据某钢厂生产货叉扁钢的轧制工艺,建立了货叉扁钢的热连轧模型,利用有限元软件DEFORM对扁钢精轧过程进行数值模拟。根据模拟结果分析了不同温度和摩擦系数对金属流动规律的影响,并通过曲线拟合的方式,得到了货叉扁钢宽展系数的数学模型,为制定合理的工艺参数,提高产品的尺寸精度提供可靠的理论依据。

To better control the dimensional accuracy of fork flat steel and eliminate subsequent processing,the hot continuous rolling model of fork flat steel was built according to the process of a rolling factory.The model of hot continuous rolling of fork flat steel was established and the finishing rolling process of flat steel was simulated based on finite element software DEFORM.The effects of different temperature and friction coefficients on metal flow law were studied on basis of simulation results,and the mathematical models of spread coefficient of fork steel were obtained by means of curve-fitting.These models provide reliably theoretical basis for the establishment of reasonable process parameters and the improvement of dimensional accuracy of the product.