1144 CONTACT INFORMATION For more information please call +44 1530 261 145 or send an email to sales@atagarryson.com CARBIDE TIPPED CIRCULAR SAW BLADES · APPLICATION NOTES Abrasive This chapter focuses on the machining of materials difficult to machine and causing high cutting edge wear. Material Group Material examples Vc (m/s) Cutting speed fz (mm/z) Feed per tooth Gypsum bound Gypsum fibre board, gypsum fibre board with MDF/Veneer, gypsum plaster board 40–65 0.1–0.25 Cement bound Fibre cement board, Eternit 40–60 0.02–0.05 Rockwool board Rockwool 2–8 0.01–0.03 Duroplastics Glass fibre and carbon fibre reinforced plastics GRP/CRP 20–50 0.01–0.03 HPL (High-Pressure-Laminate) Trespa®, Resopal®, Wodego®, Duropal®, Formica®, Unilin®, Kronospan®, Homapal®, Decodur®, Abet® 50–70 0.01–0.08 Mineral material Corian, Noblan, Hi-Macs, Staron, Rausolid 50–70 0.02–0.04 Mineral-Acrylic bound materials e.g. Kitchen worktops/ sink Corian®, Noblan®, Hi-Macs®, Staron®, Rausolid®, Varicor® 50-70 0.02-0.04 Recommended cutting values Vc (m/s) = Cutting speed Vf (m/min) = Feed rate fz (mm/z) = Feed per tooth D (mm) = Saw blade diameter n (min-1) = rpm Z = Number of teeth Vc (m/s) = D · π · n 60 · 1000 Vf (m/min) = fz · n · Z 1000 Determination of cutting speed Vc Determination of feed rate Vf Determination of revolution speed n n (min–1) = Vc · 1000 · 60 D · π 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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