期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2018
卷号：2235&2236
页码：457-461
出版社：Newswood and International Association of Engineers
摘要：The aim of this attempt is to
experimentally investigate the cutting tool wear rate
and its correlation with the cutting speed values
during a straight turning operation undertaken on a
CNC Turning Centre. Work materials and cutting
tool materials considered in this project are Stainless
Steel (304) and Aluminium cylindrical rods of 30 mm
diameter and 60 mm long, and Tungaloy carbide
T9115 cutting tool (CVD coated grade for steel
turning) used due to extremely stable tool life and
amazing chipping resistance. A short study of the key
variables that influence the cutting tool wear was
done and cutting speed, feed rate and the depth of cut
were among the factors that control the tool wear rate.
However, major influence on the tool wear rate is due
to the cutting speed variation. Therefore, in this study,
cutting speed is considered and experiments are
conducted at various cutting speed values for specific
cutting length of the work piece. Machining time for
straight turning operation of totally 10 work pieces
with different cutting speed values is noted down and
the weight reduction of cutting tool after cutting
operation of each work piece is measured using a
high-sensitive weighing balance. Along with these
values and density value of the work material,
Cutting Tool Wear rate is calculated and tabulated.
The results reveal and re-affirm that an increase in
cutting speed values results in increased cutting tool
wear rate and reduced tool life values. Complete set
of results and outcome of the investigative analysis
help in determining the optimal values of the cutting
speeds for the given cutting conditions and work
materials. Furthermore, a microscopic analysis of the
cutting tool regions is presented in order to provide
an insight on the flank and crater wear phenomenon.
