PT Journal
AU Evin, E
   Nemeth, S
   Vyrostek, M
TI Evaluation of Friction Coefficient of Stamping
SO Acta Mechanica Slovaca
PY 2014
BP 20
EP 27
VL 18
IS 3
DI 10.21496/ams.2014.027
DE Steel sheets; coefficient friction; measurement
AB 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.
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