MILLING MACHINE OPERATIONS - OD1644 - LESSON 1/TASK 2
FIGURE 27.
END MILLING CUTTERS.
2
End milling cutters may have straight or spiral flutes.
Spiral
flute end milling cutters are classified as left-hand or right-hand cutters,
depending on the direction of rotation of the flutes.
If they are small
cutters, they may have either a straight or tapered shank.
3
Several common types of end milling cutters are illustrated in
figure 27.
The most common end milling cutter is the spiral flute end
milling cutter, which contains four flutes. Two fluted end milling cutters
are used for milling slots and keyways where no drilled hole is provided for
starting the cut. These cutters drill their own starting holes. Straight
flute end milling cutters are generally used for milling soft or tough
materials, while spiral flute cutters are used mostly for cutting steel.
(e)
Face Milling Cutter.
Face milling cutters are cutters of large
diameter having no shanks.
They are fastened directly to the milling
machine spindle with adapters. Face milling machine cutters are generally
made with inserted teeth of
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