PEEK-CF30 Termoplastik Malzemenin Delinmesinde Delme Parametrelerinin Etkileri: İtme Kuvveti, Yüzey Pürüzlülüğü ve Delaminasyon

Yıl 2022, Cilt: 27 Sayı: 3, 570 - 580, 25.12.2022

Mehmet Boy

https://doi.org/10.53433/yyufbed.1104700

Öz

Bu çalışmada, Poli-eter-eter-keton (PEEK)-CF30 kompozit malzemenin kaplamasız HSS matkapla delinmesinde oluşan itme kuvveti, yüzey pürüzlülüğü ve delaminasyon faktörünün kesme parametrelerine göre değişimleri araştırılmıştır. Delme deneyleri üç farklı kesme hızı (40, 80, 120 m/dk) ve ilerleme miktarı (0.1, 0.15, 0.2 mm/dev) kullanılarak kuru işleme şartlarında yapılmıştır. Delmede oluşan itme kuvvetleri Kistler dinamometre ve ekipmanlarıyla ölçülmüş ve elde edilen sonuçların aritmetik ortalaması alınarak analiz edilmiştir. Delik yüzeyinde oluşan pürüzlülük ile delik çıkışında oluşan delaminasyon hasarları ölçülmüştür. İlerleme miktarının artmasıyla itme kuvvetinde %3-%25’lik artış olurken, kesme hızının artmasıyla itme kuvvetlerinde %9-%28 aralığında artışlar görülmüştür. Kesme hızındaki azalma ve ilerleme miktarındaki artışla birlikte yüzey kalitesinde iyileşme olurken, delaminasyon faktöründe artış görülmüştür. En düşük yüzey pürüzlülüğü 40 m/dk kesme hızı ve 0.2 mm/dev ilerlemede 1.18 µm, en yüksek yüzey pürüzlülüğü 120 m/dk kesme hızı ve 0.1 mm/dev ilerlemede 2.96 µm olarak elde edilmiştir.

Anahtar Kelimeler

Delaminasyon, Delme kuvveti, PEEK CF30, Termoplastik kompozit, Yüzey pürüzlülüğü

Destekleyen Kurum

Karabük Üniversitesi

Proje Numarası

KBÜ-BAP-16/2-YL-09

Teşekkür

Bilimsel Araştırma Projeleri Koordinatörlüğüne katkılarından dolayı teşekkür ederim.

Effects of Drilling Parameters on Drilling of PEEK-CF30 Thermoplastic Material: Thrust Force, Surface Roughness and Delamination

Öz

In this study, the variations of thrust force, surface roughness and delamination factor according to cutting parameters were investigated in the drilling of Poly-ether-ether-ketone (PEEK)-CF30 composite material with uncoated HSS drill. Drilling experiments were carried out under dry machining conditions using three different cutting speeds (40, 80, 120 m/min) and feed rates (0.1, 0.15, 0.2 mm/rev). The thrust forces in drilling were measured with the Kistler dynamometer and equipment, and the results were analyzed by taking the arithmetic average of the data. The roughness on the hole surface and the delamination damages on the hole exit were measured. With the increase of the feed rate, there was an increase of 3%-25% in the thrust force, while the increase in the thrust forces was observed in the range of 9%-28% with the increase of the cutting speed. The surface quality improved with the decrease in cutting speed and increase in feed rate while the delamination factor increased. The lowest surface roughness was obtained as 1.18 µm at 40 m/min cutting speed and 0.2 mm/rev feed, and the highest surface roughness was 2.96 µm at 120 m/min cutting speed and 0.1 mm/rev feed.

Anahtar Kelimeler

Delamimation, Drilling force, PEEK CF30, Surface roughness, Thermoplastic composite

Proje Numarası

KBÜ-BAP-16/2-YL-09

Kaynakça

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