Parametric Characterization of Machined Textured Surfaces
Pawel Pawlus1, Rafal Reizer2, Michal Wieczorowski3
1Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, Poland.
Materials (Basel, Switzerland)
|January 8, 2023
Summary
Characterizing machined textured surfaces requires few parameters. This study identifies the most suitable surface topography parameters for basic and scientific descriptions, finding specific parameter sets effective for different surface types.
Area of Science:
- Materials Science
- Mechanical Engineering
- Surface Metrology
Background:
- Surface topography characterization is complex due to numerous features.
- Machined textured surfaces are critical for tribological applications.
- A limited set of parameters is needed for practical surface description.
Purpose of the Study:
- Identify optimal surface topography parameters for machined textured surfaces.
- Determine the minimum parameters for basic (production) and scientific (research) descriptions.
- Evaluate parameter suitability for random and dimpled surfaces.
Main Methods:
- Prepared three groups of machined textured surfaces (plateau-honed, dimpled, abrasive blasted/lapped).
- Measured surfaces using white light interferometry.
- Applied correlation and regression analyses to evaluate parameters.
Main Results:
- Five parameters suffice for basic description of random surfaces; six for dimpled surfaces.
- Seven parameters capture necessary information for scientific description across surface types.
- The Sp/Sz and Sq/Sa parameter pair better describes ordinate distribution shape than Ssk and Sku.
Conclusions:
- Specific parameter sets are effective for describing machined textured surfaces.
- The chosen parameters balance production control needs with scientific research requirements.
- Novel parameter pairs offer improved characterization of surface ordinate distribution.
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