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  Citation Number 2
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KETP kompozitlerin delinmesinde delme parametrelerinin çekme kuvvetine etkisinin varyans analizi ile incelenmesi
2020
Journal:  
Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi
Author:  
Abstract:

Karbon elyaf takviyeli plastik (KETP) kompozitlerin kullanım alanlarının artmasıyla birlikte araştırmacıların bu malzemelere olan ilgisi artmaya başlamıştır. Artan bu ilgi KETP kompozitlerin talaşlı işlenmesi problemini de beraberinde getirmiştir. KETP kompozitlerin talaşlı işlenmesinde kullanılan en yaygın işleme yöntemi delme işlemidir. Ancak KETP kompozitlerin delme işlemlerinde deformasyon, kötü yüzey kalitesi, matris yanması gibi bazı problemler meydana gelmektedir. Bu problemler KETP kompozitlerin daha çabuk hasara uğramasına ya da atıl duruma gelmesine neden olmaktadır. Bu çalışmada, 0/90 elyaf yönlendirme açısına sahip KETP kompozitlerin delinmesinde takım tipi, ilerleme oranı ve iş mili devri gibi delme parametrelerinin KETP kompozitlerin çekme kuvveti üzerine etkileri incelenmiştir. İlk aşamada KETP kompozitler 140° uç açısına sahip WC (Sert Karbür), 118° uç açısına sahip HSS (Yüksek Hız Çeliği) ve Ağaç (Brad Spur) kesici takımlarıyla 1000, 3000 ve 5000 dev/dk iş mili devirlerinde ve 0.05, 0.10 ve 0.15 mm/dev ilerleme oranlarında delinmiştir. İkinci aşamada takım uç geometrisinin ve malzemesinin, ilerleme oranının ve iş mili devrinin KETP kompozitlerin kesme kuvveti, deformasyon faktörü, yüzey pürüzlülüğü ve çekme kuvveti üzerine etkileri incelenmiştir. Bu etkileri sayısal olarak tanımlamak için de varyans (Anova) analizi yapılmıştır. Yapılan çalışma sonucunda, KETP kompozitlerin delinmesinde kesme kuvveti, yüzey pürüzlülüğü, deformasyon ve çekme kuvveti üzerinde en etkili parametrenin takım tipi olduğu görülmüştür. KETP kompozitlerin delinmesinde optimum parametrelerin WC takım tipi, 0.05 mm/dev ilerleme oranı ve 5000 dev/dk iş mili devri olduğu ve optimum delme parametrelerinde delinmesi durumunda çekme kuvvetinin %19 oranında daha yüksek elde edildiği tespit edilmiştir. 

Keywords:

Study the effect of the dive parameters on the drawing force in the dive of KETP composites by variance analysis
2020
Author:  
Abstract:

With the increase in the fields of use of carbon fiber-added plastic (KETP) composites, the researchers’ interest in these materials has begun to increase. This increasing interest has also brought to the problem the processing of the KETP composites. KETP is the most common processing method used in the purple processing of composites. But some problems occur in the deformation processes of the KETP composites, such as deformation, poor surface quality, matrix burning. These problems cause KETP composites to be damaged or thrown out faster. In this study, the impact of the dive parameters, such as team type, progress rate and work mill turn, on the drawing force of the KETP compounds with a 0/90 fiber orientation angle was studied. In the first phase, the KETP compounds; WC (Hard Carbon) with a 140° end angle, HSS (High Speed Steel) with a 118° end angle, and Wood (Brad Spur) with cutting sets, were deleted in 1000, 3000 and 5000 gigantic/min work mill wheels and in 0.05, 0.10 and 0.15 mm/min progress rates. In the second phase, the geometry of the end of the equipment and the material, the progress rate and the work mill cycle; the effects of the KETP compounds on the cutting force, deformation factor, surface smoothness and drawing force were studied. Variance (Anova) analysis has also been done to identify these effects numerically. The results of the study found that the KETP compounds are the type of set of the most effective parameters on cutting strength, surface smoothness, deformation and drawing strength. The optimum parameters of the KETP composites are the WC type, the progress rate of 0.05 mm/dev and the 5000 gig/min work mill turn, and the draw force is achieved by 19% higher in the case of the optimum dive parameters.

Keywords:

Determination Of The Influence Of The Machining Parameters On The Tensile Load In Cfrps By Analysis Of Variance
2020
Author:  
Abstract:

By the increasing use of carbon fiber reinforced composites (CFRP) materials have started to increase the interest in CFRP materials. However, it also has cause problem of machining of CFRP. The most common method used in machining of CFRP is drilling. But some problems occur such as deformation, poor surface quality, and matrix burning in the drilling of CFRP. These problems cause the CFRP to be damaged more quickly or to become waste. In this study, the effects of drilling conditions of CFRP materials that have a 0/90° fiber orientation angle which subjected to tensile loads were investigated. At firstly, CFRP materials were drilled at spindle speeds of 1000, 3000 and 5000 rpm and feed rates of  0.05, 0.10 and 0.15 mm/rev with HSS, Wc and Brad Spurr tool types. Then, the variance analyses (ANOVA) was applied to determinate the rate of drilling parameters, tool type and material. effects on cutting force, deformation factor, surface roughness, and tensile load. As a result of the study, it was seen that the most effective parameter on cutting force, surface roughness, deformation, and the tensile load was tool type. However, it was also determined that the optimum parameters were WC tool type, the feed rate of 0.05 mm/rev and the spindle speed of 5000 rpm. In addition, the tensile load of CFRP was obtained 19% higher in optimum drilling parameters.

Keywords:

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Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi

Field :   Mühendislik

Journal Type :   Ulusal

Metrics
Article : 782
Cite : 1.928
2023 Impact : 0.157
Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi