Milling is an essential CNC machine operation. The operating process of a milling machine determines the operational capability of that machine. According to those capabilities, there are 3 types of CNC milling machines. They are 3-Axis, 4-Axis, And 5-Axis CNC milling machines.
The main difference between these 3 CNC machining is the movement of the workpiece. Ina 3-axis machine the workpiece doesn’t rotate on any axis. Therefore, it is not possible to work on more than one surface with a single setup.
A 4-axis machine on the other, the workpiece rotates 360 degrees about the X-axis. Therefore it becomes easier to work on all four surfaces with a single fixture.
And, lastly, there is a 5-axis machine that provides an extra angled surface to work with.
