Milling is a cutting operation that removes metal by feeding the work against a rotating cutter having single and multiple cutting edges.
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Working principle
The workpiece is held on a worktable of the machine. The table movement controls the feed of the workpiece against the rotating cutter. This cutter is fixed on a spindle or arbor which revolves at desired speed. the workpiece moves against the cutter and removes the metal from the surface in order to produce the desired shape.
The video below contains the working principle of a horizontal milling machine:
The working of a milling machine has some phases of cutting. These milling processes involve the following phase of cutting:
Milling cutters
A lot of cutting tools are used for the working of the milling process. these cutters named end mills are designed with a special cutting surface on their end surfaces so they can perform drilling. It also features an extended cutting surface on each side for the purpose of peripheral milling. The milling cutter has small cutters at the end corners and the material is made of highly resistant materials. This help to produce less friction between the tools and the workpiece.
Read: milling machine process
Surface finish
Working with milling for a better surface finish, the cutting area of the milling machine gets regular intervals. These cutters contain regular ridges on the side. The distance between the ridges depends on the feed rate, the diameter of the cutter, and the quantity of the cutting surfaces. Which could be some significant variations in the height of the surfaces.
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Gang milling
Gang milling is when more than two milling cutters are involved in a setup like horizontal milling. All cutters are designed to perform a uniform operation or to perform a distinct operation. This milling operation is often introduced to duplicate parts.
