90° end mill with double sided 4-edge insert MEW Low cutting forces equivalent to positive inserts with chattering resistance for excellent surface finish. DLC coating PDL025 for machining aluminum added to the lineup for a wide range of milling applications. 1 Low cutting force equivalent to positive inserts Kyocera's unique insert-forming technology reduces cutting force equivalent to positive inserts A.R. Max.+10° (LOMU15.type) Unique insertforming technology Cutting force comparison (In-house evaluation) 2,000 1,800 127% 21% 1,600 1,400 109% 100% 1,200 Equivalent to positive inserts 98% Cutting force (N) 1,000 800 Competitor A Competitor B MEW Competitor C (Positive) (Negative) GM chipbreaker (Positive) Cutting force is the resultant force of the principal force and the feed force. Cutting conditions: Vc = 150 m/min, fz = 0.15 mm/t, ap × ae = 3 × 15 mm Cutter dia. ø20 mm Workpiece : C50 2 Excellent fracture resistance Increased cutting edge toughness for stable machining at high feed rates Fracture resistance comparison (In-house evaluation) Cutting edge Cutting angle MEW GM chipbreaker Competitor D (Negative) Competitor E (Negative) 0 f (mm/t) fz = 0.30 mm/t fz = 0.35 mm/t : Available for further cutting : Fracture occurred 10 20 30 40 50 Cutting time (min) Cutting conditions: Vc = 120 m/min, fz = 0.3 - 0.35 mm/t, ap × ae = 3 × 10 mm Cutter dia. ø20 mm, workpiece : 42CrMo4 (37 - 39 HS) 1
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