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Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 26 Sayı: 2

Investigation of the Effect of Different Cutting Conditions on Machining Performance in Parting Off Operation Applied to Ti6Al4V Alloy on CNC Lathe

Ti6Al4V Alaşımına CNC Torna Tezgahında Uygulanan Keserek Ayırma Operasyonunda Farklı Kesme Şartlarının İşleme Performansına Etkisinin İncelenmesi

Ayşegül Çakır Şencan(Bulent Ecevit University)0000-0002-0506-6522
Müberra Rüveyda Koçak(BULENT ECEVIT UNIVERSITY)0000-0003-4835-9373
Pages
463–478
Publication Date
2026-04-08
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

These results show that machinability studies should not be limited to open-machining operations such as turning and facing, which are easy to implement.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Although every product produced on a lathe is subjected to parting off operation at least once, there has been almost no study on this operation.
📊
Key Findings & Data:In this study, Ti6Al4V alloy, which is difficult to machine, was chosen as the work piece material to investigate the parting off operation in a confined space.
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Conclusion & Impact:These results show that machinability studies should not be limited to open-machining operations such as turning and facing, which are easy to implement.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Ti6Al4V · Yüzey pürüzlüğü · Takım aşınması

Abstract

Although every product produced on a lathe is subjected to parting off operation at least once, there has been almost no study on this operation. In this study, Ti6Al4V alloy, which is difficult to machine, was chosen as the work piece material to investigate the parting off operation in a confined space. The effects of different cooling conditions (dry cutting and conventional cooling), different cutting speeds (30 and 50 m/min) and different feeds (0.01, 0.02, 0.03 and 0.04 mm/rev) on surface roughness (Ra), tool wear (Vb) and chip morphology were investigated. In the experiments, it was observed that coolant application is much more vital than in open machining operations, especially in terms of tool wear, with improvements of up to 90%. The increase in cutting speed had a negative effect on Ra, but not a positive one, in contrast to open-machining operations. The increase in feeds increased Ra and Vb values, similar to the open-machining operations. In addition, the increase in feeds resulted in a shorter and more controllable chip form. These results show that machinability studies should not be limited to open-machining operations such as turning and facing, which are easy to implement. It is thought that solving the many problems encountered due to the nature of the process in confined space operations with very different and challenging conditions will add a new dimension to the studies on machinability.

Özet

Torna tezgahında üretilen her ürün, en az bir kez keserek ayırma operasyonuna tabi tutulmasına rağmen, bu operasyon ile ilgili neredeyse hiç çalışma yapılmamıştır. Bu çalışmada, kapalı alanda gerçekleşen keserek ayırma operasyonu incelenirken, işlenmesi zor olan Ti6Al4V alaşımı iş parçası malzemesi olarak seçilmiştir. Farklı soğutma koşullarının (kuru kesme ve geleneksel soğutma), farklı kesme hızlarının (30 ve 50 m/dk) ve farklı ilerlemelerin (0,01; 0,02; 0,03 ve 0,04 mm/dev) yüzey pürüzlüğü (Ra), takım aşınması (Vb) ve talaş morfolojisine etkisinin incelendiği bu çalışma ile, içerdiği zorlu koşullardan dolayı çokça probleme sahip olan keserek ayırma operasyonu için süreç optimizasyonu yapılması hedeflenmiştir. Yapılan deneylerde soğutma sıvısı uygulamasının açık alanda gerçekleşen operasyonlara göre çok daha hayati öneme sahip olduğu, öyle ki, özellikle takım aşınmasında %90’a varan iyileşmeler sağladığı gözlenmiştir. Kesme hızındaki artış, açık alanda gerçekleşen operasyonların aksine, Ra’yı olumlu değil, olumsuz etkilemiştir. İlerlemelerdeki artış, açık alanda gerçekleşen operasyonlara benzer şekilde, Ra ve Vb değerlerini artırmıştır. İlaveten, ilerlemelerdeki artış daha kısa ve kontrol edilebilir talaş formunu sağlamıştır. Elde edilen bu sonuçlar, işlenebilirlikle ilgili çalışmaların sadece uygulanması kolay olan tornalama, alın tornalama gibi açık alanda gerçekleşen operasyonlarla sınırlı kalmaması gerektiğini göstermektedir. Çok farklı ve zorlu koşullara sahip kapalı alanda gerçekleşen operasyonlarda, sürecin doğası gereği karşılaşılan çok sayıdaki problemi çözmek, işlenebilirlikle ilgili çalışmalara yeni bir boyut kazandıracağı düşünülmektedir.

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Cite This Article

Şencan, A. Ç., Koçak, M. R. (2026). Investigation of the Effect of Different Cutting Conditions on Machining Performance in Parting Off Operation Applied to Ti6Al4V Alloy on CNC Lathe. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 26 Sayı: 2, 463–478. https://doi.org/10.35414/akufemubid.1728462

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