Abstract
ABSTRACT: -
Surface roughness is an important criteria of the product quality in the machining operations. It is
depends on cutting parameters. The objective of this research is to investigate experimentally the
influence of cutting parameters on the surface roughness in turning operation, in order to determine the
optimal settings of these parameters to improve surface roughness in the turning operations.
In this work, surface roughness was measured for steel turned components, which was carried out on a
conventional and on a computer numerically controlled (CNC) turning machine with carbide tool at
different cutting parameters such as; cutting speed, depth of cut, feed, and the usage of cutting coolant.
The experimental results were collected and analyzed. The relation between cutting parameter and
surface roughness were determined. The experimental results show that the turned component surface
roughness is significantly influenced by the cutting parameters, usage of cutting fluid, and the machine
tools. The results obtained from this work show that the surface roughness of the turned components
decreased by increasing spindle speed and it increased by increasing depth of cut and feed, while it
decreased by using cutting fluid.
Also the results show that the surface roughness for the turned components on the CNC machine was
less than on the conventional machine using the same cutting parameters.
