CNC yakajairika calculation formula

1. Kuverenga kwe trigonometric mabasa

1.tgθ=b/a ctgθ=a/b
2. Sinθ=b/c Cos=a/c

2. Kuverenga kwekucheka kukurumidza
Vc=(π*D*S)/1000
Vc: kumhanya kwemutsara (m/min)

π: pi (3.14159)

D: mudziyo dhayamita (mm)
S: kumhanya (rpm)

3. Kuverengerwa kwehuwandu hwekudya (F kukosha)
F=S*Z*Fz
F: Huwandu hwekudya (mm/min)

S: kumhanya (rpm)

Z: nhamba yemashizha
Fz: (chaiyo chikafu pamupendero)

4. Kuverengwa kwezvakasara zvinhu urefu
Scallop=(ae*ae)/8R
Scallop: zvakasara zvinhu kureba (mm)

ae: XY pitch (mm)

R chishandiso radius (mm)

5. Kuverengera zvinhu kutiza gomba
Φ=√2R2

X, Y=D/4
Φ: dhayamita yegomba rekupukunyuka (mm)

R chishandiso radius (mm)

D: mudziyo dhayamita (mm)

Nhanhatu, kuverenga kwehuwandu hwezvinhu
Q=(ae*ap*F)/1000
Ｑ: Huwandu hwekudya (cm3/min)

ae: XY pitch (mm)

ap: Z kukwirira (mm)

7. Kuverengera kwekudya pabadza
Fz=hm * √(D/ap )
Fz: Chikafu chakashandiswa pabadza hm: Theoretical feed per blade ap: Z pitch(mm)
D: dhayamita yeblade (mm)

8. Die edge processing method
Kucheka kumucheto kugadzirisa kudzika = kukora kweplate - yekucheka kumucheto kureba + drill tip (0.3D)
D zvinoreva mudziyo dhayamita

9. Kuchera nguva formula
T(min)=L(min)/N(rpm)*f(mm/rev)
=πDL/1000vf
L: Gomba kureba

N: Nhamba yezvimurenga

f: Dyisa huwandu hwemari
D: Drill dhayamita

v: kucheka kumhanya

Dhora coefficient tafura fz

dhayamita mm

Kudyisa mm/rev

1.6~3.2

0.025~0.075

3.2~6.4

0.05~0.15

6.4~12.8

0.10~0.25

12.8~25

0.175~0.375

pamusoro pe25

0.376~0.625

10. Calculation formula yemazino echubhu
1 inch = 25.4mm = 8 points

Gumi nerimwe, simba rebhiza (pfuti drill)
W=Md*N/97.410
W: simba rinodiwa (KW)
Md: Torque (kg-cm)
N: nhamba yekuchinja (rpm)

12. Iyo torque yekuverenga formula ndeyotevera:
Md=1/20*f*ps*r2
f ndiyo chiyero chekudya mm/rev coefficient
r ndiyo radius ye drill bit (mm)
α: kucheka kuramba chiyero ps.Mune chikafu chidiki, iyo yakawanda simbi ndeye 500kg/m㎡;the general cast iron is 300kg/m㎡;

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