August 16, 2021

The Computer Numerical Control Milling Function Described

CNC milling machine

CNC milling is the basis for a multitude of products, from smartphones right the way through to supersonic jets. CNC Milling is also an excellent method of producing massive quantities, and speedily prototype. CNC Milling is a standard in modern manufacturing because of its unbeatable versatility and reliability. But what exactly is CNC Milling and how does it function?

What exactly is CNC Milling?

CNC Milling involves using a cutting machine that is mounted on a spindle that rotates to selectively remove material from a dedicated workpiece. The raw material is secured to a table, which is able to rotate or move on various planes that permit the machine to operate at many angles.

It is possible to use the method of CNC machining, to create not just shapes, but also slots, holes, and pockets. As the process proceeds, the cutting edges of the tool make several quick cuts to shape the surface of the material.

CNC Milling The Process

The first step of the CNC milling process starts by feeding the manufacturing specifications into a CAD system in either a 3D or 2D format. After that the design can be transformed into machine-readable formats and transferred to the CNC machine. The machine then relays the instructions to the different tools to recreate the design in the desired material. DieSand is the perfect place for you if you are looking CNC machine shop.

Before the process can begin the machine has to be outfitted with the appropriate tools and the raw material needs to be secured with a vice. After the preparations are completed, the operator will begin a program through the interface of the machine.

When the CNC Milling process begins, the machines spin at thousands of RPM - enabling them to cut through materials easily. The table will then rotate around various axes in order to form the raw material to the specified specifications.



Different types of CNC Milling

There are four main types of milling. They are:

Plain Milling

The process is also referred to as surface or slab milling. It is performed using a cutting tool that has an axis of rotation that is parallel to the surface. This tool can be utilized to create flat surfaces.


This involves the rotary axis being perpendicular to the material's surface. This method uses tools with more teeth than in plain milling. The teeth on the edges of the tools are used to cut material in the raw. Finalizing is performed by the teeth which are directly into contact with the flat surface.


Like the name suggests this type of CNC Milling uses the tool's rotating Axis being set at an angle to the surface of the raw material. They are utilized to create a middle point between Plain and Face Milling.

Form milling

This method of milling creates pieces that have no flat surfaces. The machines can be fitted with a variety of tools based on the type of curve needed.

What is CNC Milling?

The sheer versatility of CNC Milling means it can be utilized in a variety of different projects. Although CNC Milling is most commonly used to make automobile parts and aerospace parts, it can also be utilized for other reasons, for example:





Modeling and prototyping


The computer numerical control Milling process is compatible with many materials, including aluminum, steel, and bronze as well as copper and titanium because of the various tools it utilizes.

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