Doğal Taşların Dairesel Testereli Kesiminde Birim Enerjinin Kesim ve Ortam Parametrelerinden Kestirimi

Doğal taş işletmeciliği ve işlemeciliği, ülkemiz maden ihracatı için önemli sektörlerden biridir. Busektörde uluslararası rekabetin sürdürülebilir olması kaynakların verimli kullanımına bağlıdır. Doğal taşocaklarından elde edilen blokların da bu kapsamda değerlendirilmesi gerekmektedir. Doğal taş işlemetesislerinde blokların işlenmesi sırasında uygulanan kesim yöntemlerinin performanslarınınbelirlenmesi önemlidir. Kesim sırasında harcanan birim enerji dairesel testereli kesimde performansölçütlerinden biridir. Bu çalışmada, birim enerjinin bazı kesim ve ortam parametrelerinden belirlenmesiamaçlanmıştır. Birim enerjinin belirlenmesi için kesim parametreleri olarak testere çevresel hızı veilerleme hızı seçilmiştir. Benzer şekilde, ortam parametreleri olarak da testere titreşimi ve gürültüdeğerleri, kesim sonrası yüzeylerdeki pürüzlülük, kesim sırasında oluşan talaş yığınından belirlenen pasairilik katsayısı seçilmiştir. Bu parametrelerin birim enerji ile ilişkileri istatistiksel olarakdeğerlendirilmiştir. Yapılan istatistiksel çalışmalarla dairesel testereli kesimde kullanılan birim enerjininçevresel hız, ilerleme hızı, yüzey pürüzlülüğü ve pasa irilik katsayısı parametrelerinden kestirimineyönelik bir model kurulmuştur. Bu istatistiksel modelin yüksek güvenilirlikte (R2=0.948) birim enerjideğerlerini kestirebileceği tespit edilmiştir. Bu modelde kullanılan parametreler, kesimde harcananbirim enerjinin tatmin edici biçimde tahmin edilmesinde ve dairesel testereli kesimin performansınınbelirlenmesinde kullanılabilir.

Estimation of Unit Energy from Cutting and Environment Parameters in Circular Cutting of Natural Stones

Natural stone mining and processing is one of the important sectors for Turkey's mining exports. Sustainable international competition in this sector depends on the efficient use of resources. The natural stone blocks obtained from quarries should be evaluated within this scope. It is important to determine the performance of the cutting methods used in the processing of blocks in natural stone processing plants. The unit energy consumed during cutting is one of the performance criteria for circular cutting. In this study, it is aimed to determine the unit energy from some cutting and environment parameters. In order to determine the unit energy, the peripheral speed and advance rate were selected as cutting parameters. Similarly, sawblade vibration and sound levels, roughness of the surfaces after cutting, and the coarseness index determined from the pile of chips formed during cutting were selected as environment parameters. The relationships of these parameters with unit energy were evaluated statistically. A model was derived with the statistical studies for estimating the unit energy consumed in circular cutting from the parameters of peripheral speed, advance rate, surface roughness and coarseness index. It has been determined that this statistical model can estimate unit energy with high reliability (R2=0.948). The parameters used in this model can be satisfactorily used to estimate consumed unit energy during cutting and to determine the performance of the circular cutting.

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