Akademik Veri Yönetim Sistemi
JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, 2024 (ESCI)
In this paper, heat-assisted machining (HAM) method was used to improve the dimensional stability and surface quality of the work material. In online measurements, power consumed for cutting (Pc, kW) and work material temperature (Tmr, degrees C) were determined. In offline measurements, dimensional deviation value (DDV, mu m) and surface roughness (Ra, mu m) were checked. The HAM method provided a maximum reduction of 14.43% in the Pc value. While the DDV value is 80 mu m in conventional machining in the same cutting conditions, it decreases to 50 mu m in the HAM method. While the surface roughness (Ra, mu m) value is 2,66 mu m in conventional machining, it decreases to 2,42 mu m in the HAM method. According to the statistical analysis results, the process parameter that has the most impact on DDV and surface roughness is the feed rate (f). It is followed by the processing method. The HAM method was found to have a significant effect on both. Since preheating cannot be done simultaneously with cutting, the heat produced causes expansion in the volume of the work material in the TIG-based HAM method. This disadvantage makes it difficult to achieve precise dimensional tolerances.