Каталог Stellram фрез со сменными пластинами - страница 237

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Simplified formulas to evaluate hm and fz based on axial depth of cut (ap) or radial engagement (ae).

Calculation of the average chip thickness in relation with the D.O.C. (Axial)

Formula: Programme Feed Rate (fz)h= Average chip thicknessFormula: Average Chip Thickness (hm)
m
a = Depth of cut
p
df = Feed per toothha
f = hxz= f xp
zmmz
a= Insert diameter
pd d

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 (fz)h= Average chip thicknessFormula: Average Chip Thickness (hm)
m
a = Radial engagement
e

d f = Feed per tooth a

f = hxzh= f xe
zmmz
a= Cutter diameter
ed d

With round inserts, the thickness of the chip varies depending on the axial depth of cut (ap) and is related to the size of the cutting edge-preparation. For best tool life it is important to maintain the proper chip thickness as shown below. This chart calculates in relation with axial depth of cut (ap) only and not radial cut (ae).

RD..2006..insert

InsertInsert size (mm)ap d.o.c.hm (mm)fz (mm/Z)
(mm)min.max.min.max.
20,001,000,080,180,360,80
20,002,000,080,180,250,57
20,003,000,080,180,210,46
RDHT2006M0E42X820,004,000,080,180,180,40
--20,005,000,080,180,160,36
20,006,000,080,180,150,33
20,008,000,080,180,130,28
20,0010,000,080,180,110,25
20,001,000,100,200,450,89
20,002,000,100,200,320,63
20,003,000,100,200,260,52
RDHW2MEX20,004,000,100,200,220,45
0060-820,005,000,100,200,200,40
20,006,000,100,200,180,37
20,008,000,100,200,160,32
20,0010,000,100,200,140,28
20,002,000,150,250,470,79
20,003,000,150,250,390,65
20,004,000,150,250,340,56
RDHW2006M0S-X820,005,000,150,250,300,50
20,006,000,150,250,270,46
20,008,000,150,250,240,40
20,0010,000,150,250,210,35
20,004,000,250,300,560,67
20,005,000,250,300,500,60
RDHW2006M0S-25-X820,006,000,250,300,460,55
20,008,000,250,300,400,47
20,0010,000,250,300,350,42