Общий каталог Sumitomo 2018 - 2019 - страница 474

CBN Tools SUMIBORON series H Advantages of using CBN In terms of cost investment, it is much lower in machine cost and overhead cost due to the fact that a HARDENED STEEL MACHINING CNC lathe is cheaper than a grinding machine. As for the quality of finish, inserts can machine different profiles and the finishing is also commendable as compared to grinding. Environmentally, sludge treatment for grinding is a hazard to the environment but for turning, the chips can be collected and recycled. - Application Range Conditions Recommended Cutting Speed (m/min) BNC100 Application Cutting speed (m/min) General BNC2010 BNC160 Purpos BNC200 (Continuous to Light interrupted Rz = above 3,2) BNC2020 Finishing Heavy Hardened Steel Interrupted BNC300 High Precision (Rz = 1,6 to 3,2) Interruption Strength High Effiziency Continuous Light Interrupted Medium Interrupted Heavy Interrupted (Carburized layer Frequency of removal) Interruption Small Impact Force on Cutting Edge Large Cast Iron Ductile Cast Iron K Advantages of using CBN Following charts show merits of using CBN in cast iron machining compared with conventional CAST IRON MACHINING tools, such as carbide, cermet or ceramics. SumiBoron performs longer tool life than conventional tools in high speed machining and brings higher efficiency and superior precision. High Speed Machining High Speed Machining High Precision Machining Grey Cast Iron Ductile Cast Iron Cutting Speed (m/min) Cutting Speed (m/min) Ceramic Coated Carbide Cermet Tolerance a Good Ceramic Ceramic Coated Carbide Coated Carbide Cermet Cermet Tool Life (Ratio) Tool Life (Ratio) Surface Roughness (µm) SUMI BORON - Application Grey Cast Iron Ductile Cast Iron Range Finishing region Roughing region Cutting Speed (m/min) Cutting Speed (m/min) BNC500 AC405K, AC415K, AC420K BN7000 Depth of Cut (mm) Depth of Cut (mm) L3