Metal cutting processes have an important
place among traditional manufacturing methods. The
most important parameters in this type of manufacturing
are the cutting tools used in manufacturing. Tool wear,
which is the most important parameter affecting the
performance of cutting tools, is of vital importance in
terms of tool life. The present study sought to find the
parameters that affect the position of the initial wear. The
evaluation was conducted during the first spreading effect
of tool wear (0-10 s). The experimental results showed
that significant flank wear was the predominant failure
mode affecting the tool life. The workpiece material was
AISI 1050 steel, and three different types of DNMG
150608 carbide inserts, having the same geometry and
substrate but different coating layers, were employed.
Flank wear measurements were taken after the first few
revolutions and the experimental results clearly showed
that wear occurring at the beginning of the cutting
process was very slight (0.04 mm).However, in industry,
tool life criteria have been established as 0.3 mm flank
wear for the coated tools used in the study.This is vitally important information which can
facilitate the assessment of tool life.
Keywords : Initial, Ttool Life, Coating, Machining, Flank Wear.