Milling Process

Milling Process
Through milling process flat and complex shapes are formed by using multipoint cutting tool.
The axis of rotation of cutting tool is perpendicular to the direction of feed. During each
revolution of cutting operation the teeth of milling cutter enter and exit the work piece. Therefore
on every rotation the teeth are subjected to impact force and thermal shock.The tool material and
geometry must be designed to resist the conditions.
TYPES OF MILLING MACHINE
To satisfy the variety of requirement, milling machine comes in a number of ways, sizes and varieties.
a) Knee and column type
b) Horizontal
c) Vertical
d) Universal
e) Turret type
These are the general purpose milling machine, which have a high degree of flexibility and employed for all types of works, including batch manufacturing.
f) Production (bed) type
g) Simplex
h) Duplex
Triplex these machines are generally meant for regular production involving large batch sizes. The flexibility is relatively less in these machines than suitable for productivity enhancement.
i) Plano millers- these machines are used only for very large work-piece involving table travels in metres.
j) Special type
 Rotary table
 Drum type
 Copy milling (die sinking machine)
 Keyway milling machines
 Spline milling machine
These machines are of a special facilities to suit specific applications that catered by the other classes of milling machines.