环件轧制中的形状和精度

从几何学和运动学方面研究了环件轧制中形状变化规律，导出了环件内外轮廓曲线方程和内外轮廓椭圆度计算式，分析了环件轧制中椭圆度变化规律和影响因素。进行了环件轧制试验，试验结果与理论计算是一致的。

Rule of changement of ring shaped parts in rolling process has been studied from the view of geometry and kinematics, and equation of internal and external profile curves of ring shaped parts and mathematical expression of ellipticity of the internal and external profile are derived. And rule of ellipticity changement of the ring shaped parts and effecting factor in rolling process are analyzed. Also rolling experiment of ring shaped parts are carried out, of which the result is in agreement with that of theoretical calculation.