Общий каталог Palbit - страница 77

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LNXT

A recommended cutting conditions | WIPER INSERTS A

Condições de corte recomendadas | Condiciones de corte recomendables Vc (m/min) Rec. Cutting Conditions

ISO PSM Material HB Wear Resistance Toughness

(Brinell) - Fw at least 40% larger than fn (fn-f2xZ);

PH5705PH7910PH7920PH5740PHS740PH7740- Axial deepth of cut is 0,5 - 0,8mm.
1Unalloyed Steel125-220-190-280180-250-140-170140-170
P2Low-Alloyed Steel220-280-180-240170-210-130-160130-160Example:
3High-Alloyed Steel280-380-170-220160-200-110-140110-140- The width of the parallel land (F) of the insert is 1,8mm
7Malleable Cast Iron130-230190-340180-320170-300170-300-130-250- Width a cutter of 10 inserts and using a feed per tooth (fz) of 0,3mm, the feed per revolution (fn) will be 3mm, i.e. 40% bigger than the parallel land.

- To obtain a good surface finish, the feed per revolution should be a maximum of 80% of 1,8mm = 1,44mm.

K 8 Grey Cast Iron 180-245 180-300 170-280 150-250 150-260 - 110-220

- The wiper insert will have a parallel land (Fw) with a width of approximately 5,5mm.

9 Nodular Cast iron 160-250 140-250 100-240 90-210 130-220 - 80-170

- Result: Feed per revolution (fn) could be increased from 0,8mm to 60% of 5,5mm = 3,3mm. Note: Other limitations, such as machine power, must be taken into consideration. HB Feed fz (mm/t)

ISO PSM Material (Brinell)

LNXT 15… MPLNXT 15… HPLNXT 15… W
1Unalloyed Steel125-2200,10-0,300,10-0,300,10-0,35
P2Low-Alloyed Steel220-2800,10-0,300,10-0,300,10-0,35
3High-Alloyed Steel280-3800,10-0,250,10-0,250,10-0,35
7Malleable Cast Iron130-2300,10-0,400,10-0,400,10-0,50
K8Grey Cast Iron180-2450,10-0,350,10-0,350,10-0,50
9Nodular Cast iron160-2500,10-0,300,10-0,300,10-0,50

(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. The points on the insert indicates the side that should be parallel to Wiper insert with 2 Right-hand cutting edges. the workspace material. The side work of the insert it’s indicated by points.

CHIP-BREAKER selection guide |

Guia para aplicações do quebra-aparas | Guía para aplicación del rompevirutas HB Chip-Breaker Application

ISO PSM Material (Brinell)

1st choise Dificult Operations

1Unalloyed Steel125-220LNXT 15… MPLNXT 15… HP
P2Low-Alloyed Steel220-280LNXT 15… MPLNXT 15… HP
3High-Alloyed Steel280-380LNXT 15… MPLNXT 15… HP
7Malleable Cast Iron130-230LNXT 15… MPLNXT 15… HP
K8Grey Cast Iron180-245LNXT 15… MPLNXT 15… HP
9Nodular Cast iron160-250LNXT 15… MPLNXT 15… HP