表面粗糙度是指被加工表面上具有的较小间距和峰谷所组成的微观几何形状特征,一般由所采用的加工方法和其他因素形成(零件表面的物理特性及表面缺陷均不在表面粗糙度范围之内)。齿轮的工作齿面是曲面,如常用的渐开线齿形,其表面是渐开线表 Surface roughness refers to the surface of the processed surface with small pitches and peaks and valleys formed by the microscopic geometric characteristics, generally by the processing methods used and other factors (parts of the surface of the physical properties and surface defects are not in the surface roughness Range). The work of the gear tooth surface is curved, such as the commonly used involute tooth shape, the surface is involute table