加工表面形貌数字处理的若干问题

本文讨论了将表面形貌仪与通用微处理机联机,对加工表面进行数字处理的技术.目前国产表面形貌仪只能测定 R_a一项参数,应用这种技术后,可以作任意参数的评定.作者通过对五种加工表面的各十个形貌参数,进行了编程计算,并对表面作了频谱分析研究.探讨规律,认为这种应用是可行的,效果是好的,可以大大扩大商品形貌仪的功能,从而提高加工表面质量评定工作的水平.同时作者还对表面数字处理中用的三个基本规范:评定长度、取样长度和采样间隔,进行了研究,提出了不同于国内外长期以来所沿用的规范的设想和数据.

Some Researches on Digital Processing of Processed Surface Texture

This paper concerns the technique of connecting a micro-pro- cessor with a Talysurf 5P surface measuring system.Nowadays,the instru- ments for surface measurement made in our country are useful for only one parameter——R_0.By connecting the surface measuring instrument with micro-processor,we can easily obtain any surface texture parameter neces- sary for surface quality control.The authors have programmed and calculated 10 parameters of five kinds of processed surface,and the data gained are satisfactory enough.Furthermore,the authors have studied three basic norms in surface measurement,i.e.,assessment length,sample length,and sampling interval.The authors think that the norms used up to now are not fully reasonable.Some new data are given in this paper.