The geometrical properties researching of surface quality by membership function

Yufen Yang

doi:10.1117/12.819540

31 December 2008 The geometrical properties researching of surface quality by membership function

Yufen Yang

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 713004 (2008) https://doi.org/10.1117/12.819540
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

The main content of assessing the machined surface quality of machine components is the geometrical properties of surface quality. The geometrical properties of the two assessing parameters of identical surface quality (surface roughness and surface waviness) exist in the identical substance and there are certain blend and fuzziness, what's more, there is not the concept of the value to describe its varying blend degree, there are, so far, still not practicable methods and measuring tools to separate surface roughness and waviness completely. In contrast, the paper is based on the membership function of fuzzy mathematics to research the geometrical properties of surface roughness and waviness. This method completely broke the traditional one that only adopts numerical values to separate surface roughness and waviness. It can not only directly separate the two assessing parameters from actual surface, measure the actual values of parameters that meet the assessing quality and obtain the actual probability of the blend compositions between the two, but also entirely evaluate the geometrical properties of the actual surface quality, moreover, there will be a quantitative evaluation for the authenticity and reliability of the measured values from measuring systems and instruments.

Citation Download Citation

Yufen Yang "The geometrical properties researching of surface quality by membership function", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 713004 (31 December 2008); https://doi.org/10.1117/12.819540

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