Open AccessInvestigation of the wear of rolls in asymmetric rolling
Author(s) -
János György Bátorfi,
Purnima Chakravarty,
Jurij J. Sidor
Publication year - 2021
Publication title -
mérnöki és informatikai megoldások
Language(s) - English
Resource type - Journals
ISSN - 2677-1691
DOI - 10.37775/eis.2021.2.2
Subject(s) - materials science , friction coefficient , work (physics) , tribology , mechanics , value (mathematics) , coefficient of friction , metallurgy , mathematics , composite material , mechanical engineering , engineering , physics , statistics
In the present work, both symmetric and asymmetric rolling processes were investigated by means of numerical approaches. From the algorithm presented, the values of rolling pressure and sliding velocity in the roll gap were determined. These variables allow the estimation of tribological parameters of a given material. To determine the wear of the rolls and rolled materials the Archard's law has been employed. Results of numerical simulations show that the quantitative characteristics of the wear reveal a slight change for slower roll. Whereas the wear value for the faster roll increases with an increase of roll velocity ratio. It was found that for a given roll velocity ratio, rise of friction coefficient causes insignificant change in the wear value for the slower roll, while this value tends to decrease rapidly for the faster roll.