1. Lissafin ayyukan trigonometric
1.tgθ=b/a ctgθ=a/b
2. Sinθ=b/c Cos=a/c
2. Lissafin saurin yankewa
Vc=(π*D*S)/1000
Vc: saurin layi (m/min)
π: pi (3.14159)
D: diamita na kayan aiki (mm)
S: gudun (rpm)
3. Lissafin adadin abinci (darajar F)
F=S*Z*Fz
F: Adadin ciyarwa (mm/min)
S: gudun (rpm)
Z: adadin ruwan wukake
Fz: (ainihin ciyarwa a kowane gefe)
4. Lissafi na ragowar kayan tsawo
Scallop = (ae * ae)/8R
Scallop: ragowar kayan tsawo (mm)
ae: XY farar (mm)
R kayan aiki radius (mm)
5. Lissafin ramin tserewa kayan aiki
Φ=√2R2
X, Y=D/4
Φ: Diamita na tserewa (mm)
R kayan aiki radius (mm)
D: diamita na kayan aiki (mm)
Shida, lissafin adadin kayan
Q=(ae*ap*F)/1000
: Adadin ciyarwa (cm3/min)
ae: XY farar (mm)
ap: Zurfin Z (mm)
7. Lissafin ciyarwa kowace ruwa
Fz=hm* √(D/ap)
Fz: Aiwatar da ciyarwa kowane ruwa hm: Bayanin ka'idar akan kowane ruwa ap: Z farar (mm)
D: diamita na ruwa (mm)
8. Hanyar sarrafa baki
Zurfin aikin yankan gefen = kauri farantin - yanke tsayin tsayi + tukwici (0.3D)
D yana nufin diamita na kayan aiki
9. Tsarin lokacin hakowa
T(min)=L(min)/N(rpm)*f(mm/rev)
= DL/1000vf
L: Tsawon rami
N: Yawan juyin juya hali
f: Yawan adadin ciyarwa
D: Haɗa diamita
v: saurin yankewa
Drill coefficient table fz
diamita mm
Ciyar da 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
fiye da 25
0.376 ~ 0.625
10. Ƙididdigar ƙididdiga na haƙoran tube
1 inch = 25.4mm = maki 8
Goma sha ɗaya, ƙarfin doki (bindigo)
W=Md*N/97.410
W: ikon da ake buƙata (KW)
Md: Torque (kg-cm)
N: adadin juyi (rpm)
12. Tsarin lissafin magudanar ruwa shine kamar haka.
Md=1/20*f*ps*r2
f shine ƙimar ciyarwar mm/rev coefficient
r shine radius na rawar rawar soja (mm)
α: yankan juriya rabo ps. A cikin ƙaramin abinci, babban ƙarfe shine 500kg / m㎡; Babban simintin ƙarfe shine 300kg/m㎡;
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Lokacin aikawa: Juni-02-2023