Akademik Veri Yönetim Sistemi
1. Bilsel International Korykos Scientific Researches and Innovation Congress, Mersin, Türkiye, 27 - 28 Ocak 2024, ss.622-635
Freeform surfaces are used extensively in today's aerospace, automotive, energy and transportation industries
due to their superior aerodynamic properties. High aerodynamic properties lead to the need for parts with
complex geometries. For this reason, freeform surfaces consist of a complex geometry formed by parametric
curves. Depending on the design of freeform surfaces, production precision increases and the selection of
optimum production parameters becomes important. In the production process of freeform surfaces, general
process parameters such as cutting speed, feed rate, depth of cut, as well as precision machining codes on CNC
machines, also affect the final part quality. In the literature, there are many studies on the surface quality of
machined parts using general process parameters. However, there is no study on the use of precision machining
codes and methods. For this reason, a study was conducted on the effect of the use of intelligent machine
features on the surface quality of parts in the machining of freeform surfaces. In the study, airfoils, which are
called 2D cross-sections of parts frequently used in transportation and energy fields such as propellers, rudders
and sails, were taken into consideration. The experiments were carried out by Taguchi experimental design
method based on L9 orthogonal matrix. Depth of cut (0.01-0.05-0.1 mm), feed rate (100-120-150 mm/min) and
cutting speed (100-120-150 m/min) were selected as control factors and levels. As a result of the experiments,
the three parts with the most form errors were identified and these parts were remachined using precision
machining codes. Then, the improvements in the form defects of the parts were checked. As a result of the
study, it was seen that the use of precision machining codes and methods in the machining of freeform surfaces
has a positive effect on form defects and increases the surface quality of the part.