
STA NDA RD CUT TING CONDITIONS UER T Y PE Cutting Feed per tooth: fz (mm/t) Chip- speed Tool dia.: DCX (mm) ø16, CICT = 2 ø18, CICT = 2 ø20 ISO Workpiece material Hardness Priority Grade breaker Vc Plunging Vf (m/min) ø16 ~ ø22ø25 ~ ø50 n Vf n Vf n CICT = 3 CICT = 4 Carbon steels First choice MJ 3,980 7,960 3,540 7,080 3,180 9,540 12,720 - 300HB AH3225 100 - 300 0.5 - 1.2 0.5 - 1.5 0.1 S45C, C45, S55C, C55, etc. Low resistance ML Vc = 200 m/min, fz = 1 mm/t Alloy steels First choice MJ 3,980 7,960 3,540 7,080 3,180 9,540 12,720 - 300HB AH3225 100 - 300 0.5 - 1.2 0.5 - 1.5 0.1 SCM440, 42CrMo4, etc. Low resistance ML Vc = 200 m/min, fz = 1 mm/t Prehardened steels First choice AH8015 MJ 2,980 4,770 2,650 4,240 2,390 5,740 7,650 30 - 40HRC 100 - 200 0.5 - 1 0.5 - 1 0.1 NAK80, PX5, etc. for impact resistance AH3225 MJ Vc = 150 m/min, fz = 0.8 mm/t Austenitic stainless steels First choice ML 2,390 2,870 2,120 2,550 1,910 3,440 4,590 - 200HB AH130 80 - 150 0.3 - 1 0.3 - 1 0.1 SUS304, X5CrNi18-9, etc. for impact resistance MJ Vc = 120 m/min, fz = 0.6 mm/t First choice ML 2,390 2,390 2,120 2,120 1,910 2,870 3,820 Precipitation hardening 28HRC - AH130 80 - 150 0.3 - 0.8 0.3 - 0.8 0.1 stainless steels for impact resistance MJ Vc = 120 m/min, fz = 0.5 mm/t SUS630, First choice ML 1,990 1,600 1,770 1,420 1,590 1,910 2,550 X5CrNiCuNb16-4, etc. 40HRC - AH130 80 - 120 0.3 - 0.5 0.3 - 0.5 0.1 for impact resistance MJ Vc = 100 m/min, fz = 0.4 mm/t Gray cast irons First choice AH8015 MJ 3,980 7,960 3,540 7,080 3,180 9,540 12,720 150 - 250HB 100 - 300 0.5 - 1.2 0.5 - 1.5 0.1 FC250, GG25, 250, etc. for impact resistance AH3225 MJ Vc = 200 m/min, fz = 1 mm/t Ductile cast irons First choice AH8015 MJ 2,980 5,960 2,650 5,300 2,390 7,170 9,560 150 - 250HB 80 - 200 0.5 - 1.2 0.5 - 1.5 0.1 FCD400, etc. for impact resistance AH3225 MJ Vc = 150 m/min, fz = 1 mm/t Titanium alloy First choice AH130 MJ 800 960 710 860 640 1,160 1,540 - 40HRC 30 - 60 0.3 - 0.8 0.3 - 0.8 0.08 Ti-6Al-4V, etc. for wear resistance AH8015 MJ Vc = 40 m/min, fz = 0.6 mm/t Heat-resistant alloy First choice ML 600 360 530 320 480 440 580 - 40HRC AH8015 20 - 50 0.2 - 0.5 0.2 - 0.5 0.05 Inconel, Hasteroy, etc. for impact resistance MJ Vc = 30 m/min, fz = 0.3 mm/t Hot mold steel First choice AH8015 MJ 2,390 1,440 2,120 1,280 1,910 1,720 2,300 40~50HRC 80 - 150 0.1 - 0.5 0.1 - 0.5 0.05 SKD61, X40CrMoV5-1, etc. for impact resistance AH3225 MJ Vc = 120 m/min, fz = 0.3 mm/t Hot mold steel of D.T.C materials First choice AH8015 MJ 1,590 960 1,410 850 1,270 1,150 1,530 40~50HRC 50 - 100 0.1 - 0.5 0.1 - 0.5 0.05 DAC**, DH**, DIEVER, etc. for impact resistance AH3225 MJ Vc = 80 m/min, fz = 0.3 mm/t Cold mold steels 1,190 480 1,060 430 950 570 760 50~60HRC First choice AH8005 MJ 50 - 70 0.1 - 0.3 0.1 - 0.3 0.03 SKD11, X153CrMoV12, etc. Vc = 60 m/min, fz = 0.2 mm/t - When chips stay in the cutting zone during slotting or pocketing, use air blast to - Tool overhang length must be as short as possible to avoid chatter. When the tool remove chips from the work area overhang length is long, decrease the number of revolutions and feed TOOL GEOME TRY ON PROGR A MMING When programming for CAM, the tool should be considered as a radius cutter. Usually, the corner radius should be set as R = 1.5 mm. If a larger radius is used, overcutting will occur. The following table shows the amount left uncut (t1) and overcut (t2). Max. depth Amount left Amount left t2 overcut APMX of cut uncut RE t1 RPG t1 RPG Corner R when LE programming LNMU0303UER... Max. depth Corner R when Amount left Amount left Corner radius of cut LE (mm) programming uncut overcut APMX (mm) RE (mm) RPG t1 (mm) t2 (mm) 0.9 1 3.5 1 0.48 - 0.9 1 3.5 1.5 0.39 - 0.9 1 3.5 2 0.3 0.12 0.9 1 3.5 2.5 0.21 0.31 Each value in table is calculated theoretically at the maximum condition. *Recommended 92 N E W PR O D U C T S