MERMERLERİN CNC MAKİNESİ İLE İŞLENMESINDE KESME KUVVETLERI VE SPESİFİK KESME ENERJİSİNİN İSTATİSTİKSEL ANALİZİ

Abstract

Bu çalışmada, mermerlerin bilgisayar kontrollü makine (CNC) ile işlenmesinde kesme kuvvetleri ve spesifik kesme enerjisinin istatistiksel analizi yapılmıştır. Deneysel çalışmalarda, 7 tür mermer, 6.0 mm çapında parmak frezeli kesici uç, 1.2, 1.6 ve 2.0 mm kesme derinliği, 2000, 2500 ve 3000 mm/dk ilerleme hızı parametreleri seçilmiştir. CNC makinesi ile yapılan işlenebilirlik deneylerinde kesme derinliği ve ilerleme hızına göre teğetsel kesme kuvveti (Fc), radyal kesme kuvveti (Ft) ve spesifik kesme enerji değerlerinin istatistiksel analizi (ANOVA) yapılmıştır. Mermerlerin fiziksel ve mekanik özelliklerinin kesme kuvvetleri ve spesifik kesme enerjisine olan etkileri doğrusal regresyon analizi ile incelenmiştir. Mermerlerin kesme kuvvet değerleri ve spesifik kesme enerji değerleri bakımından p<0.001 anlamlılık düzeyinde kesme derinliği ve ilerleme hızı arasında istatistiksel olarak anlamlı fark vardır. Buna göre mermerlerin işlenebilirliğinde kesme derinliği ve ilerleme hızı etkili olduğu görülmüştür. Bu deneylerden elde edilen veriler yardımıyla CNC makinelerinin verimliliğinin önceden tahmini için mermerlerin fiziko-mekanik özellikleri ve spesifik kesme enerjiye bağlı olarak regresyon denklemleri geliştirilmiştir

Keywords

• Mermerler, CNC Makinesi, Kesme Kuvvetleri, Spesifik Kesme Enerjisi, Fiziko-Mekanik Özellikler

Statistical Analysis of the Cutting Forces And Specific Cutting Energy withthe Processing of Marbles by CNC Machine

Abstract

In the study, statistical analysis of the cutting forces and specific cutting energy with the pocessing of marbles by computer numerical controlled (CNC) machine has been performed. In test study, 7 type marble, 6.0 mm diameter end mill cutting tool with external lines and linear processing type, 1.2, 1.6 and 2.0 mm depth of cut and 2000, 2500 and 3000 mm/min feed speed parameters were selected. The effects of depth of cut and feed Properties speed of processing equipment of CNC Machine on the processability of marbles were diagnosed cutting force (Fc), radial cutting force (Ft), and specific cutting energy values were analyzed statistically. In terms of cutting forces and specific energy values, a statistically significant difference (P<0.001) was observed among depth of cut and feed speed. It was found that the parameters that affected processability of marbles were depth of cut and feed speed. Accordingly, the processability of marbles processing type, depth of cut and feed speed was found that affected. With the data obtained from the tests, regression equations were developed in consideration of the physicomechanical properties of marbles and the specific cutting energy equation for the prediction of the efficiency of CNC machines

Keywords

• Marbles, CNC Machine, Cutting Forces, Specific Cutting Energy, PhysicoMechanical

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