Milling machine is classified as
horizontal or vertical type, depending on the position of:
Spindle
Work piece
Milling cutter
Work table or bed
Spindle
The spindle on which the milling
cutter is mounted may be horizontal for slab milling and vertical for face
milling and end milling. Hence, milling machine is classified as horizontal or vertical
type, depending on the position of spindle.
Hence, the correct option is (A).
&Key Points:-
On a vertical milling machine, the
cutting head called the spindle is oriented vertically. In the horizontal
milling machine, the spindle axis is aligned horizontally.
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