ATA International Product Catalogue

1140 CONTACT INFORMATION For more information please call +353 49 435 2138 or send an email to ask@atagroup.ie 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