TY - JOUR T1 - AISI 4140 Çelik Alaşımın Sert Tornalanmasındaki Karbon Emisyon Miktarının Sonlu Elemanlar ve Regresyon Yöntemleri ile Analizi TT - Investigation of Carbon Emission During Hard Turning of AISI 4140 Steel with FEM and Regression Methods AU - Aydın, Kutay AU - Şeker, Ulvi PY - 2025 DA - October Y2 - 2025 DO - 10.56193/matim.1638750 JF - Makina Tasarım ve İmalat Dergisi JO - MATİM PB - ODTÜ Prof. Dr. Mustafa N.Parlar Eğitim ve Araştırma Vakfı WT - DergiPark SN - 1302-9487 SP - 1 EP - 12 IS - UTIS 2024 LA - tr AB - Bu çalışmada, yüksek mekanik özellikleri sebebiyle endüstride yaygın tercih edilen AISI 4140 çelik alaşımın sert tornalanma sürecinde karbon emisyon miktarları araştırılmıştır. Bu kapsamda, ilk olarak farklı kesme hızı, ilerleme ve kesme derinliği parametreleri ile tornalama sonlu elamanlar metodu (FEM) ile simülasyonları yapılmıştır. FEM simülasyonları sonucunda elde edilen kesme güçleri ve diğer karbon emisyon faktörleri kullanılarak toplam karbon emisyon değerleri hesaplanmıştır. Sonrasında, Varyans analizi (ANOVA) ve regresyon analizleri ile karbon emisyon modeli kurulmuştur. Sonuç olarak, en düşük karbon emisyon miktarı 100 m/dk kesme hızı, 0.3 mm/dev ilerleme ve 1.5 mm kesme derinliği parametrelerinde elde edilmiştir. Karbon emisyon üzerindeki en etkili kesme parametresi, %37,58 oranla kesme hızı olduğu anlaşılmıştır. Ek olarak, toplam karbon emisyon miktarının yaklaşık %51’inin atık talaş ve yaklaşık %41’inin iş malzemesi kaynaklı karbon emisyon bileşenlerinin oluşturduğu görülmüştür. KW - Talaşlı imalat KW - Sert tornalama KW - AISI 4140 KW - FEM KW - ANOVA KW - Karbon emisyonu N2 - In this study, carbon emission rates during hard turning of AISI 4140 steel alloy, which is widely preferred in the industry due to its high mechanical properties, were investigated. In this context, firstly, Finite Element Method (FEM) simulations were performed with different cutting speed, feed and cutting depth parameters for turning operations. The total carbon emission values were calculated by using the cutting forces and other carbon emission components obtained from the FEM simulations. Then, the carbon emission model was established by Analysis of Variance (ANOVA) and regression analysis. As a result, the lowest carbon emission amount was obtained at 100 m/min cutting speed, 0.3 mm/rev feed rate and 1.5 mm cutting depth. The most effective cutting parameter on carbon emission was found to be cutting speed with a rate of 37.58%. In addition, about 51% of the total carbon emission amount was found to be waste chips and about 41% was found to be carbon emission components from the workpiece. CR - 1. Khan, W.A., Hayat, Q., Ahmed, F., Ali, M., Zain-ul-Abdein, M. 2023. 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UR - https://doi.org/10.56193/matim.1638750 L1 - https://dergipark.org.tr/tr/download/article-file/4604501 ER -