Volume 18, Issue No.3-4


Steel sheets, coefficient friction, measurement.


This In order to define the friction coefficient the simulator of strip drawn test between flat dies and cup test were applied. To evaluate the coefficient between flat dies the modified Coulumb law was used and for defining the friction at drawing edge of die the modified Ouehler formula was applied. Due to these both evaluation processes it was enabled to point out the difference of friction coefficient values in various contact areas of rolling product and the tool. In his paper there are presented the measurement and evaluation processes of friction coefficient by applying the cup test. For experimental research the following types of materials are suitable: DC 05- extra deep drawable steel sheet, DX 54D – extra deep drawable Zn coated steel sheet, austenitic steel sheet DIN 1.4301.


Acta Mechanica Slovaca. Volume 18, Issue 3-4, Pages 20–27, ISSN 1335-2393


  Evaluation of Friction Coefficient of Stamping


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