
WNMW
A recommended cutting conditions | RAMPING AND HELICAL INTERPOLATION A
Condições de corte recomendadas | Condiciones de corte recomendables
| ISO | PSM 1 | Material Unalloyed Steel | HB (Brinell) 125-220 | Wear Resistan PH7910 160-280 | Vc (m ce PH7920 150-230 | /min) PH6125 160-190 | Toughness PH6135 100-180 | Feed fz (mm/t) WNMW 12… 0,30-1,50 |
| P | 2 | Low-Alloyed Steel | 220-280 | 150-230 | 140-220 | 140-180 | 90-170 | 0,30-1,50 |
| 3 | High-Alloyed Steel | 280-380 | 140-190 | 130-180 | 130-160 | 80-140 | 0,30-1,30 | |
| 7 | Malleable Cast Iron | 130-230 | 160-350 | 150-310 | - | - | 0,30-1,50 | |
| K | 8 | GreyCast Iron | 180-245 | 150-300 | 140-260 | - | - | 0,30-1,50 |
| 9 | Nodular Cast iron | 160-250 | 120-260 | 100-220 | - | - | 0,30-1,40 |
Helical Interpolation
(Note 1) Cutting conditions ae/Dc=70%. (Note 2) It’s possible to occur vibrations in certain cases. Please reduce depth of cut and / or reduce cutting conditions in following cases: - When using long shank; - When using long tool overhang with arbor type; - When application has poor clamping rigidity or when using a low rigidity machine. (Note 3) PH5… and PHS… can be used wet or dry. PH7… use only air. Blind hole Dc Flat bottom (Note 4) It’s possible to occur vibrations in certain cases. Please reduce depth of cut and / or reduce cutting conditions in following cases: - When using long shank; Ødi = ØDH - ØDc - When using long tool overhang with arbor type; - When application has poor clamping rigidity or when using a low rigidity machine.
| ØDc | Max Ramp aº | Ramping Max ap | Min Lr | ØDHmin | Helical Interpolation ØDHmax | Max Pitch/Rev. |
| 35 | 3,0 | 1,8 | 34,3 | 53,2 - | - 68,0 | 2 5 |
| 52 | 1,8 | 1,8 | 57,3 | 87,2 - | - 102,0 | 3 4 |
| 63 | 1,2 | 1,8 | 85,9 | 109,2 - | - 124,0 | 3 4 |
| 66 | 1,0 | 1,8 | 114,6 | 115,2 - | - 130,0 | 3 3 |
| 80 | 0,9 | 1,8 | 114,6 | 143,0 - | - 158,0 | 3 3 |
x
Note: During helical interpolation do not exceed max Pitch.
Mergulho | Plunge L≤3Dc L>3Dc fz (mm/t) 0,10-0,20 0,07-0,14
S max. DR S Smax = DC.DR-DR2
S max and DR corrsponding cutting diameter Dc (mm) Dc (mm) DR (mm)
| 35 | 52 | 63 | 66 | 80 | |
| 1,0 | 5,8 | 7,1 | 7,9 | 8,1 | 8,9 |
| 2,0 | 8,1 | 10,0 | 11,0 | 11,3 | 12,5 |
| 3,0 | 9,8 | 12,1 | 13,4 | 13,7 | 15,2 |
| 4,0 | 11,1 | 13,9 | 15,4 | 15,7 | 17,4 |
| 5,0 | 12,2 | 15,3 | 17,0 | 17,5 | 19,4 |
| 6,0 | 13,2 | 16,6 | 18,5 | 19,0 | 21,1 |
| 7,0 | 14,0 | 17,7 | 19,8 | 20,3 | 22,6 |
Note: Recommended for L 4 Dc, forL > 4DC steps must be reduced to 40%.