Küresel uçlu parmak frezelerde kesme kuvvetlerinin CAD sistemi ile elde edilmesi

Frezelemede, talaş kaldırma esnasında meydana gelen kuvvetlerin hesaplanabilmesi için kesici takım ile iş parçası girişim geometrileri kullanılabilir. Takım iş parçası teması ile meydana gelen arakesitten elde edilen geometrik bilgi ile kesme kuvvetlerinin kartezyen koordinatlardaki üç dik bileşeni ve bileşke kesme kuvvetleri mekanik verilerle birleştirilerek yeni ve genelleştirilmiş bir çözüm metodu ortaya konulmuştur. Modelde kullanılan en önemli parametreler; Kesici takım ve iş parçası temas yüzeyini sınırlayan arakesit eğrileri üzerindeki takım orijinine göre koordinatları, takımın iş parçasına eksenel ve radyal dalma miktarları, işlenen parçaların yüzey şekilleri, kesici takım üzerinde bulunan kesme kenarlarının helis açıları ve kesici takım geometrileridir. Bu bilgilerin helisel kesme kenarlı freze kesicileri için geliştirilmiş mekanik modeller içerisinde kullanılması neticesinde değişik formlu parmak frezeler ile serbest yüzeylerin işlenmesinde kesme kuvvetlerinin üç dik bileşeni elde edilebilmiştir.

In milling operations, the cutting tool-workpiece geometri¬cal interactions are used to calculate the cutting forces during machining. A new and generalized Solution technique is established by combining the cutting force components in Cartesian co-ordinates and resultant forces, and the in formation about and workpiece geometrical inter face. The important parameters used the model are the coordinates mounted on the crosisection curvatures bounding the cutting tool and workpiece in ter face, the axial and the radial depth of tool penetration to workpiece, surface profiles of the machined parts, helix angle of the tool cutting edges and cutting tool geometries. Three componats of the cutting forces are obtained for different shapes of and milling cutters in machining workpart surfaces by into ducing the above mentioned in formation to the models developed for the cutting tools with helix cutting edges.

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