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一、前言随着工业技术的发展,对机械加工零件的表面质量,提出了许多新的要求,其中加工表面的粗糙度就是一项重要的质量指标。过去对作为精密机械加工主要方法之一的磨削加工获得的表面粗糙度的研究,主要对磨削表面的轮廓波形进行直观的波形分析,其主要评定指标就是算术平均偏差R_a、平均高度R_z、轮廓不平度的最大高度R_(max)等。这些指标只考虑表面粗糙度高度方向上的参数,只能反映加工后的表面粗糙度,却不能反映粗糙度的全部形成原因,较难在加工过程中加以控制和改善表面状况。现在由于微型电子计算机的普及和数字技术的发展,使得现代数据处理技术得到广泛应用。目
I. Introduction With the development of industrial technology, many new requirements have been put forward on the surface quality of machined parts. The roughness of the machined surface is an important quality indicator. The past, as one of the main methods of precision machining surface roughness obtained by grinding, the grinding surface of the waveform profile of the intuitive waveform analysis, the main assessment indicators are the arithmetic mean deviation R_a, the average height R_z, Contour roughness maximum height R_ (max) and so on. These indicators only consider the parameters of the height direction of the surface roughness, only reflect the surface roughness after processing, but can not reflect the full formation of roughness, more difficult to control and improve the surface conditions in the process. Now due to the popularization of miniature electronic computers and the development of digital technologies, modern data processing technologies are widely used. Head