Оптимальный выбор Kennametal 2025 - 2026 - страница 217

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COPY MILLING 7713VR SERIES 7713VR TECHNICAL INFORMATION Working Diameter: • Formula to evaluate the correct working diameter based on axial depth of cut (ap). r ap D2 where: • Dw = Working diameter Dw • D2 = Diameter of cutter insert center to center • r = Insert radius • ap = Axial depth of cut INDEXABLE MILLING where: • Formula to find programmed feed rate based on radial engagement • fz = Feed per tooth and axial depth of cut. • hm = Average chip thickness • r = Insert radius • ae = Radial depth of cut • ap = Axial depth of cut • Formula to calculate the average chip thickness hm in relation with radial engagement and depth of cut. Simplified formulas to evaluate hm and fz based on radial engagement or depth of cut. • Calculation of the average chip thickness in relation with the D.O.C. (Axial) Formula: Program Feed Rate (fz) Formula: Average Chip Thickness (hm) fz = hm x d • hm = Average chip thickness ap • ap = Depth of cut • fz = Feed per tooth • d = Insert diameter Calculation of the average chip thickness in relation to the ae (Radial Engagement) if ae is less than 50% of diameter Formula: Program Feed Rate (fz) Formula: Average Chip Thickness (hm) • hm = Average chip thickness • ae = Radial engagement • fz = Feed per tooth • d = Cutter diameter kennametal.com B114