Abstract
The quality of working surfaces plays an important role in automotive industrial components. One of the main characteristics of such surfaces is their wear resistance. In this study external cylindrical surfaces were analyzed. A Design of Experiment methodology was applied and hard turning experiments were carried out to analyze the effects of the cutting parameters on the 3D surface roughness values of reduced peak height, skewness and kurtosis. The study confirmed earlier findings that at lower feed the wear resistance is higher based on the analyzed roughness parameters. The cutting speed and the depth-of-cut do not influence these parameter values significantly.
Highlights
A working surface means that it has motion relative to another surface
Most of them have to be hardened in order to increase the wear resistance and the life of the components [1, 2]
In the experiments external cylindrical surfaces were machined by hard turning
Summary
A working surface means that it has motion relative to another surface. One of the most important phenomena in this relationship is the wear of surfaces. There are numerous roughness parameters that aim to provide information about the wear resistance of a surface, for example the peak height (Sp), reduced peak height (Spk), peak material portion (Sr1), peak material volume (Vmp), skewness (Ssk), kurtosis (Sku), and surface bearing index (Sbi). These parameters are defined in different ways, for example Ssk and Ssk are dimensionless parameters, Vmp measures specific volume and Spk measures a certain part of the profile height. The results can provide useful information for the research of the tribological characteristics of machined surfaces
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