AISI H13 Sıcak İş Takım Çeliğinin İşlenmesinde Kesme Kuvvetinin Deneysel, Nümerik ve İstatistiksel Olarak İncelenmesi

Öz

Bu çalışmada, seramik kesici takımlar ile AISI H13 sıcak iş takım çeliğinin tornalanmasında kesme parametrelerinin kesme kuvveti üzerindeki etkileri araştırılmıştır. Tornalama deneyleri, üç farklı kesme hızında (120, 180 ve 240 m dak-1), üç farklı ilerleme miktarında (0.12, 0.15 ve 0.18 mm dev-1) ve üç farklı talaş derinliğinde (0.6, 1 ve 1.4 mm) kuru kesme şartlarında CNC torna tezgahında gerçekleştirilmiştir. Aynı zamanda, tornalama simülasyonları da sonlu elemanlar analizine (FEA) dayalı olarak Third Wave AdvantEdge yazılımı ile gerçekleştirilmiştir. Deneysel ve nümerik analizler ile elde edilen kesme kuvveti verileri, Taguchi methodu, Anova ve regresyon analizleri kullanılarak istatistiksel olarak analiz edilmiştir. Analiz sonuçları her iki yöntem ile elde edilen esas kesme kuvveti (Fc) değerleri üzerinde sırasıyla %80.97 ve %80.32 katkı oranları ile en etkin parametrenin talaş derinliği olduğunu göstermektedir. Dahası, tornalama simülasyonlarında ve deneysel olarak elde edilen esas kesme kuvveti (Fc) değerleri arasında ortalama %9'lik bir fark elde edilmiştir ve her iki yöntem ile elde edilen Fc değerleri için optimum parametre grubu A3B1C1 (kesme hızı = 240 m dak-1, ilerleme miktarı = 0.12 mm dev-1 ve talaş derinliği = 0.6 mm)’dir.

Anahtar Kelimeler

• AISI H13
• tornalama
• kesme kuvveti
• optimizasyon
• sonlu elemanlar analizi

Experimental, Numerical and Statistical Investigation of Cutting Force in the Machining of AISI H13 Hot Work Tool Steel

Öz

In this study, the effects of cutting parameters on cutting force are investigated in turning of AISI H13 hot work tool steel with ceramic cutting tools. Turning experiments have been performed at three different cutting speeds (180 and 240 m min-1), three different feed rates (0.12, 0.15 and 0.18 mm rev-1) and three different depths of cut (0.6, 1 and 1, 4 mm) on a CNC lathe under dry cutting conditions. At the same time, turning simulations have been made with Third Wave AdvantEdge software based on finite element analysis (FEA). The cutting force data obtained by experimental and numerical analyzes have been also statistically analyzed using the Taguchi method, Anova, and regression analysis. The analysis results revealed that the most effective parameter on the main cutting force (Fc) values obtained by both methods was the depth of cut with the contribution rates of 80.97% and 80.32%, respectively. Moreover, an average of 9% difference was obtained between the main cutting force values (Fc) obtained in the turning simulations and experimentally and the optimum parameter group for the Fc values obtained by both methods were A3B1C1 (cutting speed = 240 m min-1, feed rate = 0.12 mm rev-1, and depth of cut = 0.6 mm).

Anahtar Kelimeler

• AISI H13
• turning
• cutting force
• optimization
• finite element analysis

Kaynakça

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