DIAGNOSTICS OF WORKPIECE SURFACE CONDITION BASED ON CUTTING TOOL VIBRATIONS DURING MACHINING
Jerzy Józwik 1  
,  
Dariusz Mika 2  
 
 
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1
Department of Production Engineering, Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 36, 20-816 Lublin, Poland
2
Center for the Study of Engineering, Institute of Technical Sciences and Aviation, The State School of Higher Education in Chelm, Depułtycze Królewskie 55, 22-100 Chelm, Poland
Publish date: 2015-05-14
 
Adv. Sci. Technol. Res. J. 2015; 9(26):57–65
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ABSTRACT
The paper presents functional relationships between surface geometry parameters, feed and vibrations level in the radial direction of the workpiece. Time characteristics of the acceleration of cutting tool vibration registered during C45 steel and stainless steel machining for separate axes (X, Y, Z) were presented as a function of feedrate f. During the tests surface geometric accuracy assessment was performed and 3D surface roughness parameters were determined. The Sz parameter was selected for the analysis, which was then collated with RMS vibration acceleration and feedrate f. The Sz parameter indirectly provides information on peak to valley height and is characterised by high generalising potential i.e. it is highly correlated to other surface and volume parameters of surface roughness. Test results presented in this paper may constitute a valuable source of information considering the influence of vibrations on geometric accuracy of elements for engineers designing technological processes.