Каталог Stellram фрез со сменными пластинами - страница 245

7713VR Technical Information

r a

p

D2

Dw

Working Diameter:

Formula to evaluate the correct working diameter

based on axial depth of cut (ap).

D = D + 2 x r2 - (r -a )2

w 2 p

where: D = Working Diameter w D = Diameter of cutter insert centre to centre 2 r = Insert radius a = Axial Depth of Cut p

7713VR Technical Information

where: f = Feed per tooth a = Radial Depth of Cut z e

h = Average chip thickness a = Axial Depth of Cut

m p r = Insert radius

Formula to find programmed feed rate based on radial engagement and

axial depth of cut. h m f = z

r 2 - r - a( )2 r 2 - r - a( )2

e p x r r

Formula to calculate the average chip thickness hm in relation with radial

engagement and depth of cut.

r - r - a( )2 r - r - a( )2

2 e 2 p

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

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

d f = Feed per tooth a

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

a d = Cutter diameter e d