It was determined that inappropriate cutting speeds
and feed rate values, hard shell and sandy areas on
the outer surface of the part reduced the cutting tool
life. It was also determined that early fractures of cutting
tools were occurred during machining and different
from the sizes programmed in CNC part
programs were obtained because of the insert corner
wear. Since tool wear was not determined dynamically,
size dimensions were determined as larger than
they should be after a number of parts manufactured.
Since the tool wear was not measured and the tool life
was not determined correctly, the production out of
tolerance values were occurred. In order to prevent
this, the cutting parameters in the CNC part program
namely cutting speed, feed rate and cutting depth
were examined [13].