Investigation Of The Cutting Force And Cutting Temperature Relationship In Milling Of Stainless Steel

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Yurtkuran H., Günay M.

ISARC 5. International Göbeklitepe Scientific Sudiest Congress, Şanlıurfa, Turkey, 6 - 07 May 2023

  • Publication Type: Conference Paper / Full Text
  • City: Şanlıurfa
  • Country: Turkey
  • Yozgat Bozok University Affiliated: Yes


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.