Simulation of friction in upsetting process

• Autorzy: Lacki P.
• Konferencja: Third International Tribology Conference ITC 2004
• Języki publikacji: EN

Abstrakty

EN

In the paper both numerical simulation of the upsetting process and experimental verification have been presented. Some test results of the surface roughness for the contact surfaces and geometrical parameters of the forging have been given. Three frictional models had been applied in the numerical model of the upsetting process and then the obtained results have been compared. Simulation of the frictional pair has been made with the "User-supplied friction models" of the ADINA System v.8.1. Probability of the appearance of the different friction coefficients depending on lubrication, surface roughness and relative velocity of the contact surfaces have been taken into consideration in the frictional models.

Słowa kluczowe

EN

friction coefficient; numerical simulation; finite element method; ring test

PL

wytrzymałość materiałów; symulacja numeryczna; metoda elementów skończonych; współczynnik tarcia

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2004
• Tom: Vol. 9, no spec.
• Strony: 247--253
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Lacki P.

• Częstochowa University of Technology Institute of Metal Working, Quality Engineering and Bioengineering Al. Armii Krajowej 21, 42-200 Częstochowa, POLAND

Bibliografia

• [1] ADINA R&D (2002): Theory and Modeling Guide. - ARD 02-7, September, 2002.
• [2] Gierzyńska-Dolna M. (1983): Friction, wear and lubrication in metal forming. - Warsaw: WNT (in Polish).
• [3] Szczerek M. and Wiśniewski M. (2000): Tribologia Trybotechnika. - Radom: Wyd. ITE.
• [4] Tomilson G.A. (1929): Molecular theory of friction. - Phil. Mag., Series 6, vol.7, No.46.
• [5] Nayak P.R. (1971): Random process model of rough surfaces. - Trans. ASME, J. Lub. Techn., vol.93F, pp.398-407.
• [6] Peklenik J. (1968-69): New developments in surface characterisation and measurements by means of random process analysis. - Proc. Institution of Mechanical Engineers, vol.182, Part 3K, pp.108-126.
• [7] Tsukizoe T. and Hisakado T. (1986): On the mechanism of contact between metal surfaces: part 2 - the real area and the number of the contact points. - J. Lubr. Technol., Jan., pp.81-88.