For general machining Q Series Long tool life and smooth surface finish in medium – finishing application. Stable machining in steel, stainless steel and hard material <68 HRC. 1 Varied interval flute design Superior anti vibration performance due to variable pitch flute design βα α ≠ β 2 Wide variety of machining operations High efficiency machining for steel, stainless steel and hardened material <68HRC 3 Long tool life with MEGACOAT Superior wear and oxidation resistance with MEGACOAT Hardness (GPa) Coating properties (In-house evaluation) 40 35 30 25 20 15 10 400 TiCN TiN TiAIN MEGACOAT 600 800 1,000 1,200 Oxidation temperature (°C) Low Oxidation resistance 1,400 High Wear resistance evaluation 4QFSM-VG (Cutting distance 3,900 mm) Wear 1/2 or smaller Competitor A (Cutting distance 1,900 mm, breakage) Cutting conditions: N = 2,918 min -1 , Vf = 678 mm/min, ap x ae = 12 x 9.6 mm Machining diameter ø 12 mm, 4 teeth, slotting, dry Workpiece: 42CrMo4V Smooth endmill surface reduces welding and allows stable machining Kyocera MEGACOAT Smooth and sharp to the tip of the cutting edge. Longer tool life and improved surface nish. Competitor A Coating surface is rough and delamination is visible. The cutting edge is rounded. Competitor B Major delamination of cutting edge and exposed material is noticeable. 1
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