Surface quality and topographic inspection of variable compliance part after precise turning
| Autor: | Krzysztof Zak, Roman Chudy, Grzegorz Królczyk, Radoslaw W. Maruda, Szymon Wojciechowski, Piotr Niesłony |
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| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Materials science General Physics and Astronomy Stiffness Mechanical engineering Chatter mark Context (language use) 02 engineering and technology Surfaces and Interfaces General Chemistry Surface finish Kinematics 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films 020901 industrial engineering & automation medicine Surface roughness Cemented carbide Forensic engineering medicine.symptom 0210 nano-technology Stylus |
| Zdroj: | Applied Surface Science. 434:91-101 |
| ISSN: | 0169-4332 |
| Popis: | The paper presents the problem of precise turning of the mould parts with variable compliance and demonstrates a topographic inspection of the machined surface quality. The study was conducted for the cutting tools made of cemented carbide with coatings, in a range of variable cutting parameters. The long shaft with special axial hole, made of hardened 55NiCrMoV6 steel was selected as a workpiece. The carried out study included the stiffness measurement of the machining system, as well as the investigation of cutting force components. In this context, the surface topography parameters were evaluated using the stylus profile meter and analysed. The research revealed that the surface topography, alongside the 3D functional parameters, and PSD influences the performance of the machined surface. The lowest surface roughness parameters values, equalled to Sa = 1 μm and Sz = 4.3 μm have been obtained during turning with cutting speed v c = 90 m/min. The stable turning of variable compliance part affects the surface texture formation with a unidirectional perpendicular, anisotropic structure. Nevertheless, in case of unstable turning, the characteristic chatter marks are observed, and process dynamics has greater contribution in formation of surface finish than turning kinematics and elastic plastic deformation of workpiece. |
| Databáze: | OpenAIRE |
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