Negative M Class Chipbreakers for Low Carbon and General Steel Turning FE Type / FB Type P Steel ・ The high performance FE type, which ensures stable chip control in a wide range of feed rate, has been added to the chipbreaker series for low carbon steel and general steel turning. ・ Extensive product lines are available to meet various machining requirements. ・ The positive insert chipbreaker FB type is also availabe. B ■ ■ Application Range 2.0 Inserts Depth of cut (mm) 1.6 FB type LU type 1.2 FE type 0.8 FL type C 0.4 0.1 0.2 0.3 0.4 0.5 D Feed rate (mm/rev) FE Type Chipbreaker for Finishing R Supports general purpose machining to high speed machining Performance Chip Control Work material: Pipe steel (STKM13A) Insert: CNMG120408N-FE (AC8025P) The arc-shaped main breaker ensures stable Cutting conditions: vc = 200 m/min f = 0.4 mm/rev ap = 0.2 mm Dry S chip control in a wide feed rate range. Excellent chip control under low depth of cut and high feed rate condition The two step chipbreaker enables stable chip control at a low feed rate of f = 0.1 mm/rev T The sub-breaker controls cutting chips in profiling. 1.40 0.70 V 20° FE type (AC8025P) Conventional Cross-section of chipbreaker W Application Example Application Example Work material: Gummy steel (SPHC440) Facing insert: CNMG120408N-FE (AC8025P) Work material: S53C ø20-100 External turning and facing Insert: DNMG150412N-FE (AC8025P) Cutting conditions: vc = 200 m/min. f = 0.15 mm/rev ap = 0.2-0.5 mm Wet Cutting conditions: vc = 180 m/min. f = 0.25 mm/rev (radius), 0.45mm/rev (straight section) ap = 0.3 mm Wet Ceramic Solid CBN Stable chip curling and breaking in facing of gummy steel Stable chip control even at a variable feed rate in shallow cutting 100 mm 100 mm FE type (AC8025P) Competitor FE type (AC8025P) Conventional FB type breaker for low feed finishing Supports low feed machining Application Example Work material: Pipe steel (STKM13C) Internal turning Insert: DNMG150404N-FB (T3000Z) Cutting conditions: vc = 352 m/min. f = 0.03-0.2 mm/rev ap = 0.7 mm Wet Smooth chipbreaker geometry with a high rake reduces cutting resistance. Small chip curling and control The variable rake angle in nose radius makes effective strain on chips and improves the breaking performance 0.80 FB type (T3000Z) Competitor 27° Cross-section of chipbreaker B14