T.O. 1-1A-9
TABLE 3-20. BEARING PROPERTIES, TYPICAL, OF ALUMINUI ALLOY PLATES AND SHAPES.
3-186. Milling cutters should be inclined to work
3-188. Tables 3-24 and 3-25 cite suggested speeds,
and beveled on leading corner (least bevel for finish
contour and tool angles, for milling aluminum. The
cuts) to minimize clatter.
best combination of cutting speeds, feed and cut for
a given job will depend on design of tool/cutter, kind
3-187. The cutting fluids for milling aluminum
of tool material, condition of machine, machine power,
should combine cooling and lubrication properties.
size, clamping method and type material being worked.
Coolant lubrication should be applied under pressure
(atomized spray if available) in large quantities to
3-189. SHAPING AND PLANING . The speed at which
tool and work. The recommended cutting fluids are
aluminum alloys can be cut by planing and shaping is
water base cutting fluids such as soluble oils and
somewhat slower in comparison to other machining
emulsions, mixed 1 part to 15 for high speeds and
methods, due to equipment design and limitations.
1 part to 30 for low speed cutting.
3-45
