Yazar "Kilickap, Erol" seçeneğine göre listele
Listeleniyor 1 - 4 / 4
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe An ANFIS model for predicting workpiece deformation during the milling of thin-walled composite components(Sage Publications Ltd, 2026) Ozdemir, Burak; Emir, Ender; Bahce, Erkan; Yardimeden, Ahmet; Kilickap, ErolThe milling of thin-walled structural components is a meticulous procedure, particularly for workpieces with diminished mechanical qualities. Such workpieces are subject to greater deformation due to the cutting force. These deformations have a negative effect on the machining accuracy of the machined parts. Therefore, it is important to focus on the causes and effects of workpiece deformation in order to understand the surface machining quality of the workpiece. The aim of this study is to calculate the deflection of the workpiece during milling of thin-walled components made of glass fiber reinforced polymer composite (GFRP), carbon fiber reinforced polymer composite (CFRP) and basalt fiber reinforced polymer composite (BFRP). The tests were carried out at three different feed rates (0.1-0.2-0.3 mm/rev) and three different speeds (2000-3000-4000 r/min). A high-speed camera was used to detect the deflection of the thin-walled workpiece during milling. The effect of machining parameters on the variation of cutting force and deflection was statistically evaluated by analysis of variance. In order to better understand the behaviour of the parameters in the process, a predictive model was created using the artificial intelligence method Adaptive Network Based Fuzzy Inference System (ANFIS). The model is able to predict the cutting force with an accuracy of 65.7% and the deformation with an accuracy of 98.9%.Öğe Analysis of Drilling Behaviour in Jute Fibres Reinforced Natural Composites(Taylor & Francis Inc, 2023) Ozdemir, Burak; Yardimeden, Ahmet; Bahce, Erkan; Kilickap, Erol; Emir, EnderIn the study, Natural jute composite materials, which have environmental advantages due to their easily degradable nature were drilled with different processing parameters and the effects of thrust force, vibration and temperature changes on hole quality were investigated. The effect of feed and spindle speed was statistically analyzed using ANOVA method. The thrust force, vibration and temperature factors that occur depending on the drilling parameters vary and affect the roughness and delamination values. The effect of feed and speed on thrust force was calculated as 97.87% and the feed effect (90.85%) is far greater than the speed (9.15%). The effect of drilling parameters on vibration is statistically insignificant due to the different spread behavior in the layers of the composite material (R2 = 0.2329). However, feed effect on vibration (94.6%) is greater than the speed effect (6.06%). The temperature is affected by 96.93% of the drilling parameters and the speed is 84.16% and the feed is 15.83%. The roughness effect depending on the drilling parameters is measured as 84.91%. The effect of speed on roughness (90.26%) is greater than the feed (9.73%). It has been determined that this situation is mostly related to vibration and temperature.Öğe Examining the impact of fiber orientation angle and drilling parameters on the quality of holes in GFRP pipes(Sage Publications Ltd, 2025) Ozdemir, Burak; Emir, Ender; Bahce, Erkan; Yardimeden, Ahmet; Kilickap, ErolThis study examined the impact of altering the fiber orientation angle on delamination and surface quality in glass fiber reinforced polymer (GFRP) pipes. GFRP pipes are manufactured at three distinct orientation angles: 30 degrees, 60 degrees, and 90 degrees. Experiments were conducted at four distinct feed rates (0.05, 0.1, 0.2, 0.3 mm/rev) at three varying speeds (2000, 4000, 6000 rpm). The impact of the fiber orientation angle on thrust force, entry and exit delamination, and surface roughness of the holes was examined. The orientation angle significantly affected other parameters (p < 0.05). An orientation angle of 90 degrees generated increased thrust force while reducing roughness and delamination in comparison to other orientation angles. At a 90 degrees orientation angle relative to 30 degrees and 60 degrees, an approximate increase in thrust force of 4.8%-4.1%, a decrease in surface roughness of 25%-21%, and a decrease in delamination of 23%-7% was observed.Öğe Optimization of parameters for drilling composite materials with freeform surfaces(Taylor & Francis Inc, 2024) Ozdemir, Burak; Kilickap, Erol; Bahce, Erkan; Yardimeden, Ahmet; Emir, EnderIn the drilling process, the angle of surface is one of the parameters that affect hole quality. In study, the effects of feed rate, spindle speed and surface angle on the thrust force, roughness, and delamination, which are the factors affecting the quality of hole, were investigated in the drilling of GFRP (glass fiber reinforced polymer) and CFRP (carbon fiber reinforced polymer) with freeform surfaces. With ANOVA (Analysis of Variance) and regression analysis, the parameter effects were statistically compared, and descriptive mathematical models were derived. The mathematical models were subjected to the Genetic Algorithm approach according to the different surface angles determined and the optimum parameter values were calculated. Guiding data were obtained about the effects of machining on hole quality in drilling composite at different surface angles, which is the main motivation of the study. Optimization results will improve hole quality on curved surfaces, while saving cost and time.
