One: cutting line speed:
V = πdn / 1000
N = regime (rotation of the main axis)
D = (mm (cutting diameter)
V = m / min
π = 3.14
Two: cutting power:
Kw = (ks × v × d × f) ÷ (6000 × λ)
W = KW (cutting power)
F = entry volume (mm / reverend)
D = Cup depth (mm)
λ = 0.7 ～ 0.85 (mechanical efficiency)
Three: Cup impedance:
P = ks × q
P = kg
Ks = kg / square mm
Q = F × D[zone de coupe[carré mm].
Four: Cup couple:
T = p × (d / 2)
T = kg-m
D = (mm (cutting diameter)
Five: the speed of the knife and the amount of knife:
Vf = n × f
VF = input knife speed (mm / min)
N = regime (rotation of the main axis)
F = entry volume (mm / reverend)
Six: drilling time:
T = l / nf = πdl / 1000vf
T = drilling time (min)
D = (mm (diameter of the drilling bit)
L = Drilling depth (mm)
V = m / min
F = entry volume (mm / reverend)
Seven: compensation for the radius department of the tip of the knife:
Z = R (1-tanθ / 2)
X = ztanθ
Z = Z to compensate for the correction
X = x to compensate for the correction
R = direct radius of the tip of the knife
θ = Oblique bar angle
Eight: Quantity of Workbench power:
Vf = fz × z × n
VF = Workbench feed (mm / min)
Fz = measurement by teeth (mm / t)
Z = Cup-Fire tooth number
n = number of milling
Formula and use of calculating the roughness of the CNC Tower
1: Given – the greater the roughness, the greater the roughness, the greater the processing efficiency, the lower the wear of the tool, therefore the advancement is generally determined.
2: The larger the tip of the knife – the larger the tip of the knife, the lower the roughness, but the cutting force will continue to increase, the rigidity of the machine tool is higher and the more the rigidity of the material He himself is raised. It is recommended that the towers of the General Steel Steel parts below 6150 do not use the tip of R0.8 or more, and the hard aluminum alloy should not use the tip of the knife above R0 .4, otherwise there is no way to guarantee, even if it can reduce roughness!
3: Calculate the power of the device during the cut. When you pay attention, most of the number of CNC rounds use corrugated engines. The speed of speed is closely linked to the speed of the time line. But of course, if your main axis is driven by costly constant couple servomotors, this is the most perfect choice
The minimum roughness that can be obtained in the Tour is the main reason for the precision of the spindle. Rountch. The combination of the RA algorithm generally does not obtain 50% of the RY value, becomes RA0.5, then calculates the role of the light blade of 50%.
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