Smithy Midas 1220 LTD - Manual (Page 90)

Common Milling Operations
Milling Flat Surfaces
One way to mill a flat surface is by plane milling. Adjust the milling cutter vertically to
give the needed depth of cut while the workpiece is held on the table and slowly feed it
horizontally. Every tooth on the periphery of the cutter removes a chip every revolution.
Milling wide, flat surfaces this way is called slab milling.
Figure 17.11 One way to mill a flat surface
is by plane milling
Another way to mill flat surfaces is by face milling.
In this method, the cutter teeth operate at right
angles to the cutter axis. Inserted-tooth
face-milling cutters face mill large surfaces.
Figure 17.12 Inserted tooth face milling
cutters face mill large surfaces
Bevels and chamfers are cut at an angle to the main work-piece surface. A bevel cut
(Figure 17.13) goes from side to side, completely removing the perpendicular edge.
A chamfer removes only part of the perpendicular edge.
Figure 17.3 A bevel cut goes from side to side,
completely removing the perpendicular edge.
Midas 1220 LTD Operator’s Manual
17-12
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