表面粗糙度功能参数及其三维量值的实验研究

Functional parameters of surface roughness and experimental study of Its 3-D index

它介绍了表面粗糙度二维与三维功能参数,分析指出二维功能参数的理论缺陷以及三维功能参数的优点。由于三维功能参数尚未形成正式标准,它使用MicroXAMTM三维形貌仪及粗糙度样块进行试验研究,探讨其应用规律。结论如下:三维功能参数适用于普遍对象,以指数形式出现的三维功能参数是基于Abbott曲线的表面微观几何形状的描述,和表面的精度并无直接关系,对应周期性较强表面与随机性较强表面,其数值出现较大差异,随机性较强表面性能优越。

It introduced 2-D and 3-D functional parameters of surface roughness,also analysed their academic shortcomings and advantages.Because of 3-D functional parameters not being forms the formal standards,experimental study was carried out by using the MicroXAMTM 3-D Surface Profiler and stan-dard examples of surface roughness.The results show that 3-D functional parameters apply to all ecumeni-cal engineering surface.It describes the shape of surface roughness and have no relation to surface preci-sion,based on Abbott curve and in the guise of exponent.To periodic surface and random surface,the nu-merical value of 3-D functional parameters appears a greater difference.The random surface＇s capabilities is obvious advantage than periodic surface＇s.