Abstract. Filters are used in precision engineering and production measurement to suppress unwanted components in measured data, to reconstruct the sampled surface in case of tactile measurements, or to separate portions of different scales. The application of such filters comprises a wide area, in essence, coordinate measurement, form and contour measurement, as well as surface…
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 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 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 Many have discussed, evaluated, defined and contemplated the notion of surface technology for more than half a century and have drawn one outstanding conclusion: currently, no one has all the data to define accurately the” functionality” of a piece part surface to predict how it will perform and for how long. Typical required~; urface…
Abstract This paper presents a novel method for the analysis of solid surfaces in contact with a conformable component. These applications are common in many engine and hydraulic applications, wherein conformable seals, gaskets, bushings, etc. are employed to prevent unwanted flow across an interface or provide a uniform load distribution. The proposed analysis method employs…
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 The paper is a critical review of existing methods that permit in situ measurement of large externalcylindrical surfaces. Large size cylindrical elements are used in many industries, e.g. papermaking, metallurgyor shipbuilding. Their diameter can sometimes reach even a few meters and they can be severalmeters long. Such elements should be characterized by high dimensional…
Abstract This study focuses on developing a new error separation technique for the in situ measurement and reconstruction of cylindrical profile. Based on a five-point system proposed, the center vectors of the least squares circle in the cross-sectional profile of the cylinder can are accurately extracted by the error separation model. The vectors are based…
Abstract Preferred commercial methods of measuring the out-of-roundness of aworkpiece are based upon radial methods. These incorporate a very accuratespindle either to carry the transducer or via a table to the workpiece.Consequently they are best operated in a controlled environment such as in aninspection room. However, there is a requirement for measuring the workpiecenear to…
Abstract This paper presents a new multiprobe method for roundness measurements called the mixed method. In this method, displacements at two points on a cylindrical workpiece and an angle at one of the two points are simultaneously monitored by two probes. The differential output of the probes cancels the effect of the spindle error, and…
Abstract A multi-point method for spindle error motion measurement is proposed in the paper. The radial error motion of the spindle is measured by 4 probes, where as the axial and tilt ones by 5 probes. Roundness error and flatness error of the specimens used for measuring the spindle error motions are separated and have…
