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本文计入了圆柱体在镦粗过程时质点的速度和加速度的影响,建立了模具的速度、加速度与试件压缩比各之间的微分方程,编成计算程序,在微机上实行计算,监将计算结果同实测作了对比,讨论了各个参数对锻造成形的影响。所编程序比较简单,有一定的通用性,可将模具的动能,质量、初速度、初加速度、试件的尺寸、流动应力以及试件对模具的摩擦系数等参数随时变换,应用比较方便。也可以根据试验得到的变形终了高度反算出不同打击速度下的流动应力值。
In this paper, the influence of particle velocity and acceleration on the cylinder during the upsetting process is taken into account. The differential equation between the velocity and the acceleration of the mold and the compression ratio of the specimen is established. The calculation program is compiled and the calculation is performed on the microcomputer. Comparing the calculation results with the actual measurement, the influence of each parameter on the forging forming is discussed. The programming is relatively simple and has a certain degree of universality. It can change the kinetic energy, mass, initial velocity, initial acceleration, specimen size, flow stress and the coefficient of friction of the specimen to the mold at any time. It is more convenient to apply. It is also possible to calculate the flow stress values at different blow speeds based on the final deformation height obtained from the test.