Abstract:
Optimization of turning process parameters using Taguchi method is essential because of its
difficulty in obtaining minimum surface roughness and maximum material removal rate during
turning of AISI 1045/C45 due to its ovality of the work piece, mismatch between the sample
piece diameter and the tolerance, bend lead screw work piece breakdown, hardness of the piece.
This study is mainly focused on the optimization of turning process parameters (spindle speed,
feed rate, and depth of cut) for the workpiece material. The experimental analysis was
performed by using different softwares: MINITAB 18 is used to analyze Taguchi and DOE,
Solid Work is used to design a work piece, and Gwyddion software is used to display roughness
profiles. Optimization was performed by lathe turning, using tungsten carbide inserts for each
test. Taguchi analysis of the SN ratio and analysis of the variance were used to optimize
machining parameters. An analysis of variance (ANOVA) has been used to determine the effect
of turning process parameters on surface roughness and material removal rate. The machine
tools and inserts based on the ISO measurement and the influence of cutting parameters were
also analyzed. The cutting parameters for minimum surface roughness were obtained at a
smaller spindle speed (600 rpm), a higher feed rate (0.16 mm/rev), and a higher depth of cut
(1.50 mm), while the maximum material removal rate was obtained at a higher spindle speed
(1250 rpm), a higher feed rate (0.16 mm/rev), and a medium depth of cut (1.0 mm). According
to the ANOVA, all cutting parameters have a significant effect on surface roughness, with the
depth of cut having the highest weight percentage (33.051%), the highest feed rate (16.910%),
and the fastest spindle speed (14.251%). And for material removal rate, it was found that the
spindle speed weight percentage (47.120%), feed rate (10.240%), and depth of cut (7.015%)have a significant influence on material removal rate
