Research Information System
Kayır Y. (Executive), Erkoçak Y.
Project Supported by Higher Education Institutions, 2019 - 2021
Optimization of Cutting Parameters in Boring Operation of White Cast Irons
Manufacturing is a field that has been constantly explored over a period of more than 200 years.
In the machining process, some sawdust is removed from the workpiece using the specified
machine tool and cutting tools and the surface quality is obtained with the desired dimensions.
The overall aim of machining research is to investigate workpiece-to-tool interaction for
optimum cutting conditions, ensuring the best product quality and lowest machining cost.
Machinability can be defined as the relative ease or difficulty of chip removal through the
material. Shear strength and surface quality can be used to measure machinability in a
machining operation. Since cutting forces directly affect power consumption and tool wear, it
is important to optimize these forces. Thus, power consumption and tool wear can be
minimized. Nevertheless, surface roughness values have been applied to reduce economic and
surface geometric disturbances. Cast irons are materials that are obtained by casting and which
have a significant structure and which are in a very different structure and hardness, which is
widely used in the machine and manufacturing industries. According to their chemical structure
and physical properties they are examined in four basic groups as gray cast iron, spheroidal
graphite cast iron, temper cast iron and white cast iron. Under these groups, high hardness
martensitic white cast iron (Ni-Hard) and high chromium white cast iron materials with a high
alloy structure of white cast iron have high abrasion resistance and hardness, so they are used
for ore crushers, grinding mill rollers, agricultural machines, pistons, conveyors, pumps, gears
and mining It is frequently used in fields such as industry.
In this study, different cutting materials (CBN, CERAMIC, CERMET) with different boring
materials (steel bar, carbide bar, anti vibration bar) and different lengths of boring (L / D ratio)
were used in boring operation in turning with high hardness martensitic white cast iron (Ni
Hard) and high chromium white cast iron materials which are difficult to process, it is aimed
to determine the optimum machining conditions by obtaining the optimum cutting force,
surface roughness and tool wear by examining the cutting parameters, (V,f,a) cutting force,
surface roughness and the effects of tool wear on them experimentally and the effect of cutting
temperature. In addition, the effects of the test results on the cut off parameters of the test
results will be determined using the taguchi method as a result of the experiments, and
statistical equations will be obtained and the unknown values will be obtained without
experimenting.
As a result, it is aimed to spread the usage areas of these materials, which are difficult to
machinability with optimum values that can be obtained, and contribute for knowing and to
contribute to the literature.