Каталог Stellram фрез со сменными пластинами - страница 181

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Навигация

Calculation of the average chip thickness in relation with the ae (Radial Engagement) if ae is less than 50% of dia.

Formula: Programme Feed Rate (f )h= Average chip thicknessFormula: Average Chip Thickness (h)
zmm
a = Radial engagement
e
fdf = Feed per toothha
= hxz= f xe
zmmz
a
ed = Cutter diameterd

hm Correction Coefficient Chart

Cutter Ø 50mm Cutter Ø 63mm Cutter Ø 80mm Cutter Ø 100mm

aaCoefficientaaCoefficientaaCoefficientaaCoefficient
e%e (mm)Factore%e (mm)Factore%e (mm)Factore%e (mm)Factor
52,502,3053,152,3054,002,3055,002,30
105,001,66106,301,66108,001,661010,001,66
157,51,40159,451,401512,001,401515,001,40
2010,001,252012,601,252016,001,252020,001,25
2512,501,162515,751,162520,001,162525,001,16
3517,501,053522,051,053528,001,053535,001,05
50 - 10025,00 - 50,001,0050 - 10031,50 - 63,001,0050 - 10040,00 - 80,001,0050 - 10050,00 - 100,001,00

Example: A 50mm diameter cutter using 5,00mm radial engagement (ae) = 10% of the cutter diameter. At 10%, your coefficient is 1,66 (see above table); therefore you must multiply your feed rate by 1,66 for correcting the feed for profiling.

Wiper pockets are

The chart above shows the identified with a W

multiplication factor for the feed engraved on the

rate based on the percentage face of the body.

of the radial engagement of the

cutter diameter.

The 5230VS cutter series is designed with

wiper pockets which provide a much better

face surface finish. The non-wiper pockets

generate the 90° corner. The same inserts

can be utilised in all pockets.

Pockets setting difference

between wiper and non-

wiper inserts.

Note: The true cutter

diameter is measured at

the non-wiper pockets.

0,15

0.6°

0,13

Cutter No. of Wiper

Non wiper pocketDiameter (mm)Inserts
positions are set
back & square502
to axis to give a632
true 90 degree
approach.803

100 3 Wiper pocket positions are in front and angled to allow facing.