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Mathematische Modellierung einer experimentell‐analytischen Methode zur Ermittlung des Reibungskoeffizienten beim Tiefziehen
Author(s) -
Lela B.,
Krolo J.,
Mirić T.
Publication year - 2019
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201800018
Subject(s) - blank , lubrication , deep drawing , surface roughness , friction coefficient , mechanical engineering , materials science , engineering drawing , process (computing) , coefficient of friction , engineering , computer science , composite material , operating system
Abstract 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.