Experimental and Numerical Analysis of the Effect of Cutting Parameters on Cutting Force and Chip Formation in Turning Process

Öz

In this study, the influences of cutting parameters on the main cutting force (Fc) and the chip morphology in turning of the Inconel 625 superalloy by using uncoated cutting tools are evaluated by experimental and numerical analysis. The turning tests were performed without coolant on a CNC lathe at five different cutting speeds (60, 90, 120 and 180 m/min), three different feed rates (0.12 0.18 and 0.24 mm/rev) and three different depth of cut (0.5 1 and 1.5 mm). Kistler 9257B type dynamometer and equipment’s were used to measure the main cutting force (Fc). Finite element modelling of the cutting forces have been performed using Deform 3D software. Comparing experimental and numerical analysis results, it was found that there is a deviation of approximately 12% between the experimental and numerical results of the main cutting force (Fc).

Anahtar Kelimeler

• Inconel 625
• Turning
• Cutting forces
• Finite element analysis

Tornalama İşleminde Kesme kuvveti ve Talaş Oluşumu Üzerinde Kesme Parametrelerinin Etkisinin Deneysel ve Nümerik Analizi

Öz

Bu çalışmada, kaplamasız kesici takımlar kullanılarak Inconel 625 süperalaşımının tornalanmasında oluşan esas kesme kuvveti (Fc) üzerinde kesme parametrelerinin etkisi deneysel ve nümerik analizler ile değerlendirilmiştir. Tornalama deneyleri, beş farklı kesme hızında (60, 90, 120, 150 ve 180 m/dak), üç farklı ilerleme miktarında (0,12 0,18 ve 0,24 mm/dev) ve üç farklı talaş derinliğinde (0,5 1 ve 1,5 mm) kuru kesme şartlarında CNC torna tezgahında gerçekleştirilmiştir. Esas Kesme kuvvetinin (Fc) ölçülmesinde, Kistler 9257B tipi dinanometre ve ekipmanları kullanılmıştır. Esas kesme kuvvetinin (Fc) sonlu eleman yöntemiyle modellemesi Deform 3D yazılımı kullanılarak yapılmıştır. Deneysel ve nümerik analiz sonuçları karşılaştırıldığında, deneysel olarak ölçülen Fc değerleri ile nümerik analizler sonucu elde edile Fc değerleri arasında yaklaşık olarak %12 oranında bir sapma tespit edilmiştir.

Anahtar Kelimeler

• Inconel 625
• Tornalama
• Kesme kuvveti
• Sonlu elemanlar analizi

Kaynakça

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