Akademik Veri Yönetim Sistemi
ISARC 5. International Göbeklitepe Scientific Sudiest Congress, Şanlıurfa, Türkiye, 6 - 07 Mayıs 2023
High mechanical and thermal loads occur during
the machining of stainless steels due to the low thermal conductivity, which
reduces cutting tool life and increases machining costs. On the other hand, dry
machining is still used as a sustainable cutting medium due to the harmful
effects of mineral oil cutting fluids on human health and the environment.
However, the high heat released in dry machining is one of the main sources of
increased cutting force by causing rapid wear of the cutting tool. In this
context, it is very important to analyze the relations between cutting forces
and cutting temperature according to cutting parameters. In this study, the
resultant cutting force (Fr) and cutting temperature (Tc) were measured in the
milling of 17-4PH stainless steel with a coated carbide insert. The effects of
cutting speed (Vc), feed rate (f) and cutting depth (ap) on Fr and Tc were
analyzed in experiments performed according to L9 experimental
design in dry cutting environment. While the Tc value increased with the
proportional increase of the cutting speed and partially the depth of cut, the
increase in feed rate contributed to the increase of Tc up to a certain level.
The highest Tc was measured at the highest level of cutting speed (150 m/min)
and the highest f and middle ap level. While Fr value increased with increasing
feed rate and cutting depth, it decreased to a certain level with increasing
cutting speed. The highest Fr was measured at the lowest level of cutting speed
(90 m/min) and the highest f and ap values. According to the results of the
analysis of variance, the most effective parameter on the cutting force is the cutting
depth (64.92%), while the most important parameter for the cutting temperature
is the cutting speed (86.57%). These results indicate the need for simultaneous
optimization of cutting parameters to keep Tc and Fr values at a minimum.