Общий каталог Tungaloy 2020 - 2021 - страница 199

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Thrust force (N) Thrust force (N) GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex - GNGA type CBN A B 80° C 70° D For high efficiency in finishing hardened steel, E cast iron and sintered metals F Chip control in face turning Continuous cutting Interrupted cutting Chips jamin the clearance G H GNGA type CNGA type GNGA type CNGA type Corner angle: 70° Corner angle: 80° Corner angle: 70° Corner angle: 80° Since GNGA type inserts have enough space Toolholder : ACLNL2525M12-Afor chip flow, chip packing doesn’t occur,Insert: 2QP-GNGA120408 BXM20improving surface finish and preventing2QP-CNGA120408 BXM20Workpiece material : SCM420 / 18CrMo4 (60HRC)I sudden chipping on cutting edge. Cutting speed : Vc = 150 m/min Existing standard toolholders for CNGA1204 Feed : f = 0.10 mm/rev can be used. Depth of cut : ap = 0.125 mmMachining: Face turningCUTTING PERFORMANCECoolant: Dry J Cutting force (Thrust force) GNGA type CNGA type Corner angle: 70°400Average: 128 (N) Corner angle: 80°400Average: 142 (N) K 200 200 0 10 20 30 0 10 20 30 L Continuous Interrupted Continuous Interrupted -200 -200 Time (sec) Time (sec) GNGA type has large clearance andreduces cutting force compared tothe regular CNGA type. Toolholder : ACLNL2525M12-AInsert: 2QP-GNGA120408 BXM202QP-CNGA120408 BXM20Workpiece material : SCM420 / 18CrMo4 (59HRC)M Cutting speed : Vc = 150 m/min Feed : f = 0.15 mm/rev Depth of cut : ap = 0.125 mm Machining : Face turning Coolant : Dry Tungaloy B167