Experimental Investigation of Machinability of AISI 316L Stainless Steel by High Feed Milling Method

Öz

This study aims to investigate the effects of different cutting conditions on the machining performance of difficult-to-machine AISI 316L stainless steel using the high-feed milling method. Experiments were conducted using different spindle speeds and feed rates; cutting temperatures were recorded using a thermal camera, surface roughness measured with a profilometer, and tool wear examined via SEM and EDS analysis. The findings reveal that air-assisted cooling reduced the maximum cutting temperature from 321°C to 197°C (a 39% reduction) compared to dry cutting. In terms of surface roughness, the lowest Ra value achieved under air-assisted conditions was 0.929 µm, compared to 1.100 µm under dry conditions. Tool wear analyses showed that air-assisted cooling significantly reduced coating delamination and material adhesion on the tool surface. These advantages provided by the air-assisted system stand out as an environmentally friendly and energy-efficient alternative, especially in processes where high temperatures and tool wear are critical.

Anahtar Kelimeler

• AISI 316L
• High feed milling
• Sustainable machining
• Surface roughness
• Cutting temperature
• Tool wear

AISI 316L Paslanmaz Çeliğin Yüksek İlerlemeli Frezeleme Yöntemiyle İşlenebilirliğinin Deneysel Araştırılması

Öz

Bu çalışma, işlenmesi güç olan AISI 316L paslanmaz çeliğin yüksek ilerlemeli frezeleme yöntemiyle işlenmesinde farklı kesme koşullarının işleme performansı üzerindeki etkilerini incelemeyi amaçlamaktadır. Deneyler farklı iş mili devir sayıları ve ilerleme hızlarında gerçekleştirilmiş; kesme sıcaklıkları termal kamera ile, yüzey pürüzlülüğü profilometre ile ölçülmüş ve takım aşınmaları SEM ile EDS analizleriyle incelenmiştir. Bulgular, hava destekli soğutmanın kesme bölgesindeki maksimum sıcaklığı 321°C’den 197°C’ye (%39 azalma) düşürdüğünü göstermektedir. Yüzey pürüzlülüğü açısından, hava destekli sistemde elde edilen en düşük Ra değeri 0.929 µm, kuru işlemede ise 1,100 µm olarak ölçülmüştür. Takım aşınması analizleri, hava destekli kesimlerde kaplama tabakasında oluşan hasarların ve malzeme yapışmalarının önemli ölçüde azaldığını ortaya koymuştur. Bu bulgular, hava destekli sistemin çevreci ve enerji verimli bir alternatif olarak, yüksek sıcaklıkların ve takım aşınmasının kritik olduğu uygulamalarda öne çıktığını göstermektedir.

Anahtar Kelimeler

• AISI 316L
• Yüksek ilerlemeli frezeleme
• Sürdürülebilir işleme
• Yüzey pürüzlülüğü
• kesme Sıcaklığı
• Takım aşınması

Kaynakça

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