Abstract
Hard-machined components built into automotive industrial products play an important role because they incorporate working surfaces. The machining of them is crucial; the accuracy, surface quality and lifetime have to be ensured. In this paper the tribological properties of hard-turned surfaces are characterized and analyzed based on 3D and 2D surface roughness parameters. Functional parameters that provide quantitative information about the wear resistance and fluid retention of the machined surfaces were studied. The aim of the study was to summarize the relevant roughness parameters in terms of the functionality of the surfaces and to collect experimental results for their application.
Highlights
Many machined surfaces incorporate working surfaces, which move relative to other surfaces
The analysis and development of such surfaces is important because the surface quality [1, 2] and, within this parameter, the topographical characteristics [3, 4] by and large determine the lifetime of parts [5,6,7]
Surfaces machined by hard turning exhibit periodic topography in contrast to random surfaces such as ground surfaces
Summary
Many machined surfaces incorporate working surfaces, which move relative to other surfaces. The analysis and development of such surfaces is important because the surface quality [1, 2] and, within this parameter, the topographical characteristics [3, 4] by and large determine the lifetime of parts [5,6,7]. By analyzing surface topography with the help of several available surface roughness parameters, the wear resistance as well as load-bearing and fluid-retention capacities of surfaces can be characterized [11]. These parameters have been analyzed in numerous studies which only focus on certain parameter groups, e.g. Rk or volume parameters [12,13,14,15]
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