Page 922 - YG 2019
P. 922

X-POWER                                                                                                               X-POWER
                              END MILLS              RECOMMENDED CUTTING CONDITIONS                                                                 END MILLS               RECOMMENDED CUTTING CONDITIONS




               CARBIDE, 2 FLUTE MEDIUM LENGTH BALL NOSE                                                                               CARBIDE, 2 FLUTE LONG REACH BALL NOSE



                EM961, EM899 SERIES                                                                                                    EM962, EM838 SERIES

               ■ NORMAL SPEED                                                                                                        ■ NORMAL SPEED
                                                                         P                                                                                                                      P
                     MATERIAL             ALLOY STEELS                                                                                      MATERIAL          NON-ALLOYED STEELS           ALLOY STEELS
                                          HEAT RESISTANT           HARDENED STEELS           HARDENED STEELS                                                     ALLOY STEELS             HEAT RESISTANT           HARDENED STEELS
                                             STEELS                                                                                                               CAST IRON                  STEELS
                     HARDNESS              HRc30 ~ HRc40             HRc45 ~ HRc50             HRc50 ~ HRc55                               HARDNESS                ~ HRc30                 HRc30 ~ HRc40             HRc45 ~ HRc65
                                                                                                                                                                                                                             2
                     STRENGTH             1000 ~ 1250N/mm 2         1500 ~ 1750N/mm 2         1750 ~ 2000N/mm 2                            STRENGTH               ~ 1000N/mm 2            1000 ~ 1250N/mm 2           1500N/mm  ~
                     DIAMETER           RPM         FEED          RPM         FEED          RPM          FEED                              DIAMETER           RPM          FEED         RPM          FEED         RPM          FEED
                 R1/16  ×  1/8        10000         18.1        12700         43.3        12300         41.3                            R3/64  × 3/32        12600        16.5         9250          10.2        3870          3.5
                 R3/32  ×  3/16        7300         22.8         9400         43.3         9050         41.3                            R1/16  × 1/8         10500        21.3         8000          14.6        3620          4.7
                 R1/8  ×  1/4          6300         24.8         8600         45.3         8250         43.3                            R3/32  × 3/16        7310         26.0         5840          18.1        2940          5.5
                 R5/32  ×  5/16        4420         26.0         7000         41.3         6700         39.4                            R1/8  × 1/4          6220         26.4         5040          19.7        2530          5.9
                 R3/16  ×  3/8         3780         28.0         6050         39.4         5800         37.8                            R5/32  ×5/16         4210         29.9         3540          20.7        1680          5.9
                 R1/4  ×  1/2          2940         26.0         5450         39.4         5200         37.8                            R3/16  ×3/8          3700         32.3         3020          22.4        1420          5.9
                 R5/16  ×  5/8         2320         26.0         4350         34.3         4150         32.7                            R1/4  × 1/2          3020         28.3         2350          20.9        1090          5.9
                 R3/8  ×  3/4          1900         25.0         3500         27.2         3300         25.6                            R5/16  × 5/8         2190         29.1         1860          20.5         930          5.9
                 R1/2  ×  1            1520         25.0         2800         27.2         2650         25.6                            R3/8  × 3/4          1680         26.4         1520          19.7         670          5.9

                                         ap: D1/8~D1/4 =.008″      ap: D1/8 = .006″  ap                                                                           ap: D3/32~D1/4  =.008″  ap                        ap: D3/32~D1/4 =.008″
                                            D5/16~D1 =.012″           D3/16~D5/16 = .010″                                                                           D5/16~D3/4=.012″                                   D5/16~D3/4 =.012″
                                         ae: 0.2×D                    D3/8~D1 = .012″                                                                             ae: 0.2×D                                         ae: 0.1×D
                                                                   ae: 0.1×D                   ae                                                                                              ae
                                                                                                      RPM = rev./min.                                                                                                        RPM = rev./min.
                                                                                                      FEED = inch/min.                                                                                                       FEED = inch/min.


               ■ HIGH SPEED                                                                                                          ■ HIGH SPEED
                                                                         P                                                                                                                     P
                     MATERIAL             ALLOY STEELS                                                                                     MATERIAL                 NON-ALLOYED STEELS
                                          HEAT RESISTANT           HARDENED STEELS           HARDENED STEELS                                                           ALLOY STEELS                          HARDENED STEELS
                                             STEELS                                                                                                                     CAST IRON
                     HARDNESS                ~ HRc45                 HRc45 ~ HRc50             HRc50 ~ HRc55                               HARDNESS                      ~ HRc45                               HRc45 ~ HRc65
                                                                                                                                                                                                                      2
                     STRENGTH             1000 ~ 1250N/mm 2         1500 ~ 1750N/mm 2         1750 ~ 2000N/mm 2                            STRENGTH                     ~ 1500N/mm 2                           1500N/mm  ~
                     DIAMETER           RPM         FEED          RPM         FEED          RPM          FEED                              DIAMETER             RPM                 FEED                RPM                 FEED
                 R1/16  ×  1/8        21000         39.4        12700         68.9        12300         65.7                            R3/64  ×  3/32         16800                23.2               16800               15.0
                 R3/32  ×  3/16       21000         70.9         9400         65.0         9050         61.8                            R1/16  ×  1/8          16800                31.5               13600               16.5
                 R1/8  ×  1/4         21000         90.9         8600         69.0         8250         65.7                            R3/32  ×  3/16         16800                56.7               9600                18.9
                 R5/32  ×  5/16       15760        111.8         7000         61.0         6700         57.5                            R1/8  ×  1/4           16800                72.8               8400                19.7
                 R3/16  ×  3/8        13660        120.1         6050         57.1         5800         53.5                            R5/32  ×  5/16         12610                89.4               6300                23.2
                 R1/4  ×  1/2         10500        103.5         5450         55.9         5200         52.4                            R3/16  ×  3/8          10930                96.1               5040                26.4
                 R5/16  ×  5/8         8200        103.5         4350         48.4         4150         44.5                            R1/4  ×  1/2           8400                 82.7               4210                26.4
                 R3/8  ×  3/4          6300         99.2         3500         39.4         3300         35.4                            R5/16  ×  5/8          6560                 82.7               3020                22.4
                 R1/2  ×  1            5040         99.2         2800         39.4         2650         35.4                            R3/8  ×  3/4           5040                 79.5               2350                16.5

                                         ap: D1/8~D1/4 =.008       ap: D1/8 = .006″  ap                                                                                      ap: D3/32~D1/4  =.008″  ap
                                            D5/16~D1 =.012            D3/16~D5/16 = .010″                                                                                      D5/16~D3/4=.012″
                                         ae: 0.05×D                   D3/8~D1 = .012″                                                                                        ae: 0.05×D
                                                                   ae: 0.05×D                  ae                                                                                                        ae
                                                                                                      RPM = rev./min.                                                                                                        RPM = rev./min.
                                                                                                      FEED = inch/min.                                                                                                       FEED = inch/min.




               922  • phone:+1-800-765-8665,  Technical Support : 888-868-5988,  www.yg1usa.com                                                           phone:+1-800-765-8665,  Technical Support : 888-868-5988,  www.yg1usa.com  •  923
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