Table 7-4.--Recommended Chip Loads
Table 7-4 shows recommended chip loads for
There are a number of synthetic coolants. Follow
milling various materials with various types of
the manufacturer's recommendations when mixing
high-speed steel cutters.
them. If a synthetic coolant is not available, you can
use soluble oil mixed at the rate of 40 parts water to 1
part oil.
The purpose of a cutting coolant is to reduce
When using a periphery milling cutter, apply the
frictional heat and thereby extend the life of the
coolant to the point at which the tooth leaves the
cutter's edge. Coolant also lubricates the cutter face
work. This will allow the tooth to cool before you
and flushes away the chips, reducing the possibility of
begin the next cut. Allow the coolant to flow freely
damage to the finish.
on the work and cutter.
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