Based on the application of fractal geometry theory, a quantitative evaluation method of root-mean-square wavelength of 3D stochastic surface topography is proposed, by means of the surface spectral moments. Through the FFT of the discrete data of the profile measured by a Talysurf-5 contact stylus
Evaluation of the anisotropy of machined 3D surface topography
โ Scribed by Cheng-Gui Li; Shen Dong; Guo-Xiong Zhang
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 144 KB
- Volume
- 237
- Category
- Article
- ISSN
- 0043-1648
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โฆ Synopsis
The anisotropy of surface topography has great effect on the functional performance of an engineering surface. In this paper, through the analysis of the profile spectral moments and the surface spectral moments, a quantitative evaluation method is proposed, which is based on the application of fractal geometry theory. Using the 2nd spectral moments and fractal dimension, the anisotropic evaluation parameter L of 3D surface topography is presented. Experimental results indicate that the surface topography machined by finish turning is anisotropic, and the ground surface is isotropic.
๐ SIMILAR VOLUMES
One important factor in surface engineering is the evaluation of the surface topography, i.e. measurement and analysis. These measurements of the surface roughness are normally done by stylus instruments and 2D profiles due to available standards. 3D surface topography evaluation is, however, in som