Considerations Regarding Some Surface State Parameters Characterized by a more Restricted Use

Abstract:

Frequently, on the drawings of mechanical parts, only indications concerning the surface roughness parameter Ra and, relatively rarely, the surface roughness parameter Rz are included. However, the study of the machined surface roughness highlights the necessity to use yet other surface roughness parameters, in order to have a clearer image on the state of the machined surface. Some other surface roughness parameters possible to be used and presenting importance, without the parameters Ra and Rz, were highlighted. One took into consideration the possibility of measuring parameters Rsk and Rmr by means of the available surface roughness testers. Experimental researches of turning by applying the method of full factorial experiment were developed. As input factors in turning process, the cutting speed, the feed rate and the tool nose radius were used. The experimental results were mathematically processed, being determined empirical mathematical models that highlight the influence of certain input factors of turning process on the values of some surface roughness parameters characterized by a more restricted use

• Periodical: Applied Mechanics and Materials (Volumes 809-810)
• Pages: 93-98
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.809-810.93
• Online since: November 2015
• Authors: Ionuţ Urzică*, Ciprian Râznic, Mihai Apostol, Corina Mihaela Pavăl, Mihai Boca, Marius Rîpanu
• Keywords: Empirical Mathematical Models, Experimental Research, Factors of Influence, Roughness, Surface State, Turning

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