The analysis of finish tooling influence on contact fatigue of steel applied to sea water pump shafts

• Autorzy: Charchalis A. , Starosta R. , Labuda W.
• Języki publikacji: EN

Abstrakty

EN

The article presents the research results referring to the analysis of the influence of finish treatment (lathing, grinding, burnishing) on the contact fatigue of steel applied to marine pump shafts. The research was performed on a roller 25mm in diameter made of X5CrNi18-10 (AISI304 L) stainless steel. The lathing process was carried out by means of a Sandvik Coromant cutting too, the grinding was done by grinding attachment to a lathe, whereas the process of burnishing was performed by SRMD burnisher by Yamato. Within the research, the optimalization of burnishing technological parameters was conducted on account of the minimalization of Ra surface roughness coefficient as well as the maximalization of SU degree of surface layer relative hardness. The multi criteria optimalization conducted by min-max method with regard to minimum surface roughness as well as maximum degree of surface layer hardness demonstrated that burnishing process should be carried out at the following technological parameters: burnishing force 1.1 kN, burnishing speed 35 m/min, feed 0.13 mm/rev. In addition, the influence of the burnisher passes number on the surface layer quality was determined. It is essential for this research to determine the burnishing influence on the service conditions which comprises the electrochemical corrosion research, friction wear and contact fatigue research. The paper will present the research results of contact fatigue examination of samples after finish machining.

Słowa kluczowe

EN

contact fatigue; burnishing; corrosion resistant steel; surface layer; angular momentum pumps

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 2
• Strony: 85--92
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Charchalis A.

autor

Starosta R.

autor

Labuda W.

• Gdynia Maritime University of Marine Engineering Morska Street 83, 81-225 Gdynia phone: [phone], fax: [phone],

Bibliografia

• [1] Labuda, W., Starosta, R., Dyl, T., Estimation of the influence of burnishing parameters on steel X5CrNi1810 surface layers strengthening and roughness changes, Journal of KONES Powertrain and Transport, Vol. 15, No. 3, pp. 259-267, Warszawa 2008.
• [2] Charchalis, A., Starosta, R., Labuda, W., Estimation of the influence of passes number burnishing tool on ships pumps shafts surface layers strengthening and roughness changes, Journal of KONES Powertrain and Transport, Vol. 16, No. 4, pp. 43-50, Zakopane 2009.
• [3] Charchalis, A., Starosta, R., Labuda, W., The influence of burnishing parameters on the roughness, plastic strain and shape deviations of marine pumps crankshaft pins in fresh water installations, Journal of KONBiN, No. 1-2 (9, 10), pp. 57-66, Warszawa 2009.
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