Baileigh VM-936E-1, Руководство оператора

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Calculating Spindle Speed
1. To select the correct spindle speed (RPM)
needed for a particular milling operation, first
select the type material you will be using from
the chart in (fig. 17).
2. Then using the formula located below the
chart you will be able to calculate what RPM
to set the belt configuration to.
3. Measure the diameter of your cutting tool (in
inches).
Spindle Speed Example:
For making a surface cut on a piece of mild steel
using a 3/8” (0.375”) HSS cutter, do the following:
a. From the chart, the recommended
cutting speed for mild steel is 90
(SFM).
b. Using the formula, 90 (SFM) x 4 = 360.
c.
360 / 0.375” (diameter of cutter) =
960
RPM.
d. From the speed chart (fig. 17) you
would then set the belt at position (2)
for a speed of 1160 rpm.
SPEED CHART
SPINDLE MOTOR
POSITION SPINDLE SPEED
1
2
3
4
5
1860 RPM
1160 RPM
730 RPM
450 RPM
280 RPM
1
2
3
4
5
Cutting Speeds for High Speed Steel (HSS)
Cutting Tools
Piece Part Material Cutting Speed (SFM)
Aluminum and Alloys
Bronze and Brass
Copper
Soft Cast Iron
Hard Cast Iron
Mild Steel
Cast Steel
Hard Alloy Steel
Tool Steel
Stainless Steel
Titanium
Plastics
Wood
300
150
100
80
50
90
80
40
50
60
50
300-800
300-500
Note: For carbide cutting tools, double the cutting speed.
These values serve only as a guideline.
Cutting Speed (SFM) x 4
Tool Diameter (in inches)
RPM
figure 17