Investigation of the effect of minimum quantity lubrication (MQL) on cutting forces and surface roughness in turning of AISI 1050 steel

Öz

The use of traditional cooling methods has decreased significantly in recent years due to the harm they cause to both human health and the environment. Instead of this cooling method, a cooling method that is more environmentally friendly, economical and will not cause any negative effects on human health compared to traditional cooling methods has started to be used. In this study, the effect of cutting conditions on turning AISI 1050 steel at three different cutting speeds (340, 400 and 460 m/min) and two different feed rates (0,2 and 0,3 mm/rev) was investigated. MQL flow rate of 90, 150 and 200 ml/h. After the experiments, the effects of cutting parameters and cutting conditions on average surface roughness and cutting forces were examined. In line with the obtained values, it was concluded that the minimum amount of lubrication application and the flow rate increase positively affected the cutting forces and average surface roughness values. The lowest average surface roughness value was obtained as 1,42 µm. The lowest cutting force was measured as 1084 N.

Anahtar Kelimeler

• AISI 1050
• MQL
• Turning
• Cutting Force
• Surface Roughness

AISI 1050 çeliğinin tornalanmasında minimum miktarda yağlamanın (MMY) kesme kuvvetleri ve yüzey pürüzlüğü üzerindeki etkisinin araştırılması

Öz

Geleneksel soğutma yöntemlerinin gerek insan sağlığına gerekse çevreye vermiş olduğu zararlardan dolayı kullanımı son yıllarda oldukça azalmıştır. Bu soğutma yönteminin yerine daha çevreci, ekonomik ve geleneksel soğutma yöntemlerine göre insan sağlığı açısında olumsuzluk yaratmayacak olan soğutma yöntemi kullanılmaya başlanmıştır. Bu çalışmada AISI 1050 çeliği üç farklı kesme hızı (340, 400 ve 460 m/dak) ve iki farklı ilerleme miktarında (0,2 ve 0,3 mm/dev) tornalanmasında kesme şartlarının etkisi araştırılmıştır. Deneyler kuru kesme koşulunda ve 90, 150 ve 200 ml/saat minimum miktarda yağlama (MMY) akış hızında gerçekleştirilmiştir. Deneyler sonrasında kesme parametrelerinin ve kesme şartlarının ortalama yüzey pürüzlüğü ve kesme kuvvetleri üzerindeki etkileri incelenmiştir. Elde edilen değerler doğrultusunda minimum miktarda yağlama uygulamasının ve akış hızı artışının kesme kuvvetlerini ve ortalama yüzey pürüzlüğü değerlerini olumlu yönde etkilediği sonucuna ulaşılmıştır. En düşük ortalama yüzey pürüzlüğü değeri 1,42 µm olarak elde edilmiştir. En düşük kesme kuvveti ise 1084 N olarak ölçülmüştür.

Anahtar Kelimeler

• AISI 1050
• Tornalama
• MMY
• Kesme Kuvveti
• Yüzey Pürüzlülüğü

Kaynakça

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