Mathematical modeling of an experimental- analytical method for friction coefficient determination in deep drawing (CROSBI ID 261396)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lela, Branimir ; Krolo, Jure ; Mirić, Tea
engleski
Mathematical modeling of an experimental- analytical method for friction coefficient determination in deep drawing
The main aim of this paper is to determine the friction coefficient (µ) and maximum drawing force in deep drawing process of aluminum alloy EN AW 1050 utilizing strip drawing method. Influence and interaction between lubrication condition, blank holder force and strip surface roughness on maximum drawing force and friction coefficient are investigated. Response surface methodology and D-Optimal design are utilized in order to create an experimental plan. According to the design, 23 strip drawings experiments are performed and statistical analysis was done. The regression and variance analysis results with 18 significant mathematical models which are derived in order to describe influence of mentioned parameters on friction coefficient and maximum drawing force. Results are discussed according to previous research. Finally, the optimization of processing parameters is performed aiming for lower friction coefficient and maximal drawing force.
Strip drawing method ; Friction coefficient determination ; Mathematical modelling ; Deep drawing process ; Regression analysis
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Podaci o izdanju
50
2019.
372-381
objavljeno
0933-5137
1521-4052
10.1002/mawe.201800018