Cutter for cast iron with adjustable cutting edge height MFK-SF Adjustable cutting edge height for improved surface roughness High speed and high precision machining of cast iron 1 Adjustable cutting edge height for high precision machining Multi-edge cutter with adjustable cutting edge height. High speed and high precision machining of cast iron by combining ceramic insert and CBN wiper insert. 2 Special insert structure designed for high efficiency machining Low cutting forces with helical cutting edge design Tough and reliable dual angle edge design Max. A.R.+15° Secondary cutting edge Primary cutting edge Cutting force comparison (In-house evaluation) RReessuultlatannttfoforcrceeininraraddiaial lddirierecctitoionn 33,0,00000 11,0,000 RReesusultlatannt tfoforcreceininaxaixailadl dirierectcitoionn CCuuttttiinngg ffoorrccee [[NN]] CCuuttttiinngg ffoorrccee [[NN]] 22,5,50000 22,0,00000 11,5,50000 11,0,00000 550000 77%% 88000 1166%% 66000 44000 22000 00 00 MMFFKK CCoommppeetittiotorrAA MMFFKK CCoommppeetittiotor rBB Cutting conditions: Vc = 180 m/min, fz = 0.3 mm/t, ap × ae = 3.0 × 62 mm, Dry, Workpiece : GGG60, ø125 Fracture resistance comparison (In-house evaluation) MFK CA420M (CVD) Competitor C (CVD) Competitor D (CVD) 0 25% 5 10 15 20 25 Cutting time (min) Cutting conditions: Vc = 300 m/min, fz = 0.5 mm/t, ap = 2.0 mm, wet, workpiece: 450-10S (4 bores) Surface finish comparison (In-house evaluation) Burr comparison (In-house evaluation) Sharp cutting prevents burr formation Chattering Creates poor surface MFK Competitor E Cutting conditions: Vc = 180 m/min, fz = 0.3 mm/t, ap × ae = 3 × 78 mm, dry, workpiece: GGG60 1 MFK Competitor F Burr Cutting direction
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