ATA International Product Catalogue

1243 Metal-circular saw blades according DIN 1840, type N are for medium hard metals and steels up to 800 N/mm². For particularly tough and hard and tough materials we recommend type 'H' (Price and delivery time on request). For very soft and tough materials we recommend type 'W' (Price and delivery time on request). Steel APPLICATION Grey cast iron Alu Copper, copper alloys Zinc alloy Materials Vc (m/min) Cutting speed fz (mm/z) Feed per tooth Steel < 500 N/mm² 25 - 50 0.02 - 0.04 < 800 N/mm² 15 - 30 0.02 - 0.03 Cast Iron 15 - 25 0.02 - 0.05 Aluminium Solid 400 - 800 0.03 - 0.10 Aluminium Profile 800 - 1600 0.02 - 0.05 Bronze 200 - 400 0.02 - 0.06 Copper 160 - 200 0.02 - 0.05 Brass 200 - 400 0.02 - 0.04 Zinc Alloy 30 - 100 0.02 - 0.08 Recommended cutting data for HSS-DIN 1840 Typ 'N' circular saws Determination of cutting speed Vc Determination of feed rate Vf Determination of revolution speed n fz (mm/z) = Feed per tooth D (mm) = Saw blade diameter Z = Number of teeth n (min -1 ) = rpm Vc (m/min) = D · π · n 1000 Vf (mm/min) = fz · n · Z n (min –1 ) = Vc · 1000 D · π METAL CIRCULAR SAW BLADES ACCORDING DIN < 800 N 11 Index 10 9 OIL 8 7 6 5 4 3 2 1