Case studies Bolt Ni-base heat resistant alloy Vc = 50 m/min ap = 1.0 mm f = 0.2 mm/rev Wet CNMG120408MS PR1535 Aircraft parts Ni-base heat resistant alloy Vc = 50 m/min ap = 0.5 mm f = 0.1 mm/rev Wet CNMG120408MU PR1535 about ø7 ø200 Machining e ciency PR1535 (MS chipbreaker) Competitor A 80 pcs/edge 30 pcs/edge Tool life 2.6 times PR1535 (MS chipbreaker) shows 2.6 times longer tool life compared to Competitor A Machining e ciency PR1535 (MU chipbreaker) 1 pcs/edge Competitor B 1 pcs/edge PR1535-MU chipbreaker realized the stable machining by preventing the fracture at scaling and interrupted cutting compared with Competitor B. Square bar X5CrNi1810 Vc = 100 m/min ap = 2.0 mm f = 0.2 mm/rev Wet CNMG120408MS PR1535 (User evaluation) PR1535 Competitor B (User evaluation) Lenz tube X5CrNi1810 70 Vc = 120 m/min ap = 1.0 mm f = 0.15 mm/rev Wet CNMG120408MS PR1535 ø5 ø9 ø70 Machining e ciency PR1535 (MS chipbreaker) Competitor C 50 pcs/edge 10 pcs/edge Tool life 5 times Competitor C fractured due to heavy interrupted machining. PR1535 (MS chipbreaker) shows 5 times longer tool life compared to Competitor C (CVD coated carbide). (User evaluation) Machining e ciency PR1535 (MS chipbreaker) Competitor D 80 pcs/edge 30 pcs/edge Tool life 2.6 times Heavy interrupted machining PR1535 (MS chipbreaker) shows 2.6 times longer tool life compared to Competitor D. (User evaluation) Pin X5CrNiCuNb16-4 Vc = ~55 m/min (n = 3,600 min-1) ap = 0.1~0.7 mm f = 0.03 mm/rev Wet (Oil-based) 50 DCGT11T302MFP-GQ PR1535 Machining e ciency PR1535 (GQ chipbreaker) 1,600 pcs/edge Tool life 1.3 times Competitor E 1,200 pcs/edge Competitor E showed unstable tool life due to sudden defects. GQ chipbreaker (PR1535) is capable of stable machining without defects, with tool life improved to 1.3 times. (User evaluation) Valve X105CrMo17 Vc = 100 m/min (n = 3,600 min-1) ap = 0.1 mm f = 0.06 mm/rev Wet (Oil-based) DCGT11T302MFP-SK PR1535 20 Machining e ciency PR1535 (SK chipbreaker) 600 pcs/edge Competitor F 450 pcs/edge SK chipbreaker (PR1535) tool life1.3 times. Tool life 1.3 times (User evaluation) 2
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