Use of Taguchi Method to Analyse a
Robust Design for Titanium –aluminum Sandwich Sheets during Rolling
Dyi-Cheng Chen*, Ching-Pin Chen
Department of Industrial Education and Technology,National Changhua
University of Education, Changhua 500, Taiwan, R.O.C.
This study conducts a finite element analysis of the plastic
deformation of titanium-aluminum sandwich sheets in the cold rolling
process. The present finite element code is based on a rigid-plastic
model. It is assumed that the rolls are rigid bodies and that the heat
transfer effect of temperature during rolling to be ignored. The
influence of various parameters of the rolling process on the plastic
deformation of the
titanium-aluminum sandwich sheets are investigated, including the roll
diameter, the upper/middle sheet layer thickness ratio, the total sheet
thickness at the entrance, the friction factors, the temperature of the
titanium and aluminum sheets in the sandwich sheets.
The Taguchi method is used to optimize the rolling process parameters.
The radii of the rolls, the temperature of the titanium Ti-6Al-4V sheet
and the temperature of the aluminum A6061 sheets are influential design
parameters in determining the Y-load during rolling. The numerical
results provide a valuable insight into the deformation mechanisms
involved in the rolling of titanium-aluminum sandwich sheets..
KEYWORDS: Finite element analysis, Titanium-aluminum sandwich
sheets, Taguchi method
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