Akademik Veri Yönetim Sistemi
3. Global Research on Multidisciplinary Sciences (3. GloRMuS) , İstanbul, Türkiye, 4 - 07 Temmuz 2022, ss.34-45, (Tam Metin Bildiri)
Ti6Al4V alloy has increasing usage areas in engineering materials due to its high
corrosion and heat resistance, good toughness and strength resistance, high operating
temperature, low weight ratio, long service life, and competitiveness with composite
materials. This situation also highlights the studies on their production and shaping.
However, the low thermal conductivity, high chemical reactivity, low modulus of elasticity,
and high strength of the Ti6Al4V alloy cause high temperatures to occur between the
cutting tool and the workpiece. Problems such as surface integrity and cutting tool wear
during machining make it necessary to work in this area. In this study, the effects of
cutting speed and cooling environment on chip morphology, insert wear, and surface
roughness in milling of Ti6Al4V alloy were investigated. As cutting parameters; Cutting
speeds of 50 m/min and 150 m/min, a feed rate of 0.25 mm/rev and a depth of cut of 0.4
mm were used. The milling process; was made in a dry and cool environment using an
APXT-1003-PDR milling insert. As a result of the experimental studies, it was determined
that the surface roughness value decreased with the increase of the cutting speed, and the
surface properties improved with the transition of the cutting medium from dry to liquid.
With the cutting fluid, the negative effects caused by friction were eliminated and the
wear of the cutting tool decreased with increasing cutting speed. It has been determined
that the cutting speed has a more decisive effect on the chip form than the cutting
environment.