Akademik Veri Yönetim Sistemi
international journal of mechanical engineering, cilt.9, sa.7, ss.10-18, 2022 (Hakemli Dergi)
The machinability of different ductile cast irons having different mechanical properties have been studied in
terms of surface quality and tool life with the help of the Taguchi method. Solid solution reinforced ferritic spheroidal cast
iron (SSF), and spheroidal cast iron (GJS) were selected for machining comparison, as SSF is a new material according to
GJS. The tests were performed at a CNC turning machine with five control factors. They were used three levels of cutting
velocity (200 m/min, 250 m/min, 300 m/min,), three levels of feed (0,1 mm/rev, 0,2 mm/rev, 0,3 mm/rev) and three levels of
cutting depth (0,5 mm, 1 mm, 1,5 mm). Two types of tool holders with 60o and 93o
clearance angles and two types of
cutting conditions, wet and dry, were used. Also, the maximum temperature was measured by the infrared thermal scanner
during the dry cutting processes. A taguchi L36 orthogonal array was used to determine the experiment design. Finally,
the effects of these factors on the machinability of these materials have been compared, and the optimal cutting
combination was determined in terms of surface quality and tool wear. The effect of temperature was also associated with
the control factors.