In ISO TC 213 / WG 15 a set of filtration methods and concepts have been standardized or will bestandardized soon to detrend surface topography with regard to form, waviness, and roughness andwith regard to recognize features on different scales referred to as
Abstract. With the development of science and technology, the higher and higher surface accuracy ofworkpiece is required. The characterization of surface topography affect greatly on functionalperformance of workpiece. In recent years, many researchers have made a large progress on the studyof surface topography and presented some related standards. The assessment of parameters of surfaceroughness, however,…
Abstract Conventional surface characterization techniques involving random process analysis are limited in characterizing multi-scale surface features relevant to manufacturing processes and functions. This paper introduces a novel technique for multi-scale characterization of engineering surfaces by applying wavelet transform. The main advantages of wavelet transform over other existing signal processing techniques are its space-frequency localization and…
Abstract This paper concerns practical realization of open surface profile filtering and roughness evaluation. The profile is represented in the form of discrete data. A code for applying discrete Gaussian filter to a surface profile in accordance with ISO 16610–21 is presented. Linear interpolation before numerical integration for average roughness calculation is proposed. A method…
Abstract: Characterization of surface topography, roughly divided into measurement and dataanalysis, can be valuable in the process of validation of the tribological performance of machinedparts. Surface topography, especially the roughness, can respond straightly to the machining processand, in some cases, is defined as a fingerprint of the manufacturing. When considering the highprecision of surface topography…
AbstractIn this paper, the general model of the Gaussian regression filter for areal surface analysis isexplored. The intrinsic relationships between the linear Gaussian filter and the robust filter areaddressed. A general mathematical solution for this model is presented. Based on thistechnique, a fast algorithm is created. Both simulated and practical engineering data(stochastic and structured) have…
Abstract The plateau honing operation is being widely used for finishing of cylinder liners for internal combustion engines. Plateau honing has been shown to significantly reduce the costly running-in period due to the fact that very little further modification of the texture is required once the liner is put into operation. In order to better…
Abstract The height and spacing characteristics of the surface profile influence the functional behaviour of the manufactured part. A new method known as motif combination has been recommended in French standards to obtain the height and spacing characteristics of the surface profiles. An attempt has been made in this paper to compare motif combination techniques…
Abstract The E-system of roughness measurement can be used either for a two-dimensional or a three-dimensional assessment of surface roughness. The procedure for computing the two- and three-dimensional envelopes from digitized profiles is briefly explained. This method will be useful for verifying the results obtained by practical instruments. The filtering characteristic of the E-system, when…
Abstract In contrast to the widely used mean-line based evaluation techniques, the capabilities of morphological methods are not fully recognized in practice. Morphological operations, eg dilation, erosion, closing and opening, are useful tools in surface metrology and dimensional metrology. This paper presents a variety of novel applications of morphological operations in association with several of…
Abstract Some of the finer points to be taken into consideration when accurately calibrating surface texture and roundness measuring instruments are discussed. Consideration is given to such things as stylus condition, linearity, range switching accuracy, frequency response, and overall sensitivity. The paper concludes with a brief account of an experiment to determine roundness errors to…
This type of measurement system uses a soft, high resolution, elastomeric sensor that conforms to the shape of the test surface. The deflection of the sensor can be read to record a high-resolution, 3D map of the surface.
