Skip to main content

Metal milling is a general term for processing various materials, including metals, wood, and plastics. They remove chips from raw materials by machine or by hand. This controlled and complex method of machining metals is often used. One of the best-known metal machining processes is milling. Milling uses rotating tools to remove material. Metal is milled in various ways, sometimes with carbide inserts. Milling is done with computer-controlled machines, also known as CNC. After milling, the material must cool down. A condition for milling metal is the use of coolant. How You CNC wood drive system? Read about it bellow.


What is CNC milling?

CNC is a computer-controlled machine that processes semi-finished products or materials, such as metal. CNC stands for Computer Numerical Control and is widely used in the metal industry and other manufacturing fields. Examples include the plastics, wood, and glass industries. The advantage of CNC milling is that the machine is pre-programmed so that certain operations can be easily repeated. This makes it possible to process large amounts of material the same way. In addition, it is possible to perform high-precision milling based on pre-prepared designs. The machining designs, also known as CAD designs, are transferred from the computer to the milling machine. This way, the device knows what to do.

How it works?

CNC metal milling is the process of removing material from a workpiece using computer-controlled machining. The process can be used to create parts with complex shapes and features and is also often used for prototyping and small-scale parts production. The first step in CNC metal milling is to create a computer model of the desired part. The model can be created using CAD software or a 3D scanner. Once the model is completed, it is converted into toolpaths that tell the CNC machine how to move to remove material from the workpiece. The next step is to set up the CNC machine. The machine must be equipped with the proper cutting tools and chucks, and the workpiece must be firmly mounted on the device. The CNC machine can start milling the part when everything is in place. During machining, the cutting tool removes tiny amounts of material from the workpiece. The speed and precision of the CNC machine determine how quickly the desired shape can be achieved. After the milling is completed, the part is often post-processed using traditional methods, such as grinding or polishing. CNC metal milling is a versatile manufacturing process that can be used to create pieces with complex shapes and features. It is often used for prototyping and the production of low-volume parts. 

CNC metal milling is when a computer-controlled cutting tool removes material from a workpiece to produce the desired shape. The cutting tool is mounted on a spindle and moves in three axes (X, Y, and Z) to achieve the desired result. This type of machining is often used to create complex shapes or machine parts with tight tolerances. It can also be used to quickly and efficiently produce many parts. The first step in CNC metal machining is to create a computer model of the desired shape. The model can be made using CAD software or by hand. Once the model is ready, it is converted into a set of instructions for the CNC machine. The next step is to load the appropriate tools into the machine. These tools may include burrs, spherical burrs, reamers and taps. The choice of tool will depend on the material being machined and the desired result. Once the tool is loaded, the CNC machine is programmed to follow the instructions of the computer model. The machine moves the cutting tool in the required direction to create the desired shape. Once the shape is made, the workpiece is removed from the device and checked for quality. If everything is in order, the part is ready for use. If there is any problem with the part, it can be sent back by the CNC machine for adjustment. CNC metal milling is a precise process that can produce high-quality parts. It is widely used in the aerospace, medical, and automotive industries. In woodworking, a wood planer is often used when one intends to cut different profiles of wood to hollow out holes or make decorative grooves on the edges. With the ability to attach different types of blades, these tools can do a variety of work on both hard and softwood. Wood milling machines are divided into three types: surface milling machines (including immersion and stationary), edge milling machines and bench milling machines. Each will be differentiated by its purpose and the type of wood used. Thus, depending on these factors, they will adopt power, speed, weight, sleeve diameter or depth of cut. Of the three existing types, do you know which milling machine model is most commonly used? In this article everything will be explained.

What are the types of wood milling machines?

As mentioned earlier, there are face, edge, and table mills. In order for you to distinguish between them, I will briefly describe each of them.

Surface milling machine

A face milling cutter is powerful and heavy compared to the other two models, although not as heavy as a table milling cutter. In addition, they come with cables or batteries and are in the medium to high price range. Its construction is designed to use both hands at all times, facilitating more precise manipulation. It performs various functions, smoothing or rounding edges and making grooves stand out. This type includes immersion milling machines and fixed-base milling machines. The latter cannot penetrate wood resting, as they have no springs or guides.

Edge milling machine

Although edge milling machines are just as versatile as surface milling machines, they are most often used for trimming boards and battens. In addition, they are slightly less potent than the former, although they are lighter and, therefore, more convenient to use. So much so that they can sometimes be operated with one hand. There are also cordless or corded ones, priced between surface and table mills.

Table milling machine

As for the table mills, they are the heaviest and most potent of all the mills. These wired cables are much more expensive than the other two. This is often required when many parts must be milled similarly. As with surface milling machines, there are two types: manual and numerically controlled, or CNC. The main difference is that CNC machines are automated.

Wood surface milling machine

What aspects should you consider when using a wood planer?


As with any other tool, weight affects the performance of the machine. The lighter it is, the easier it is to move. However, it is true that the heavier the machine, the more stable it will be. The most common use of a milling machine is 2-4 kg, especially for jobs that do not require milling many parts.

Diameter of the chuck

This depends on the type of connected device. Usually, the shank is 6 or 8 mm in diameter, but it can be as large as 12 mm or more. The largest is 12mm and requires a more powerful milling machine.

Cutting depth

Depending on the milling machine, the depth of cut can range from 30 to 60mm. Indeed, the deeper you go, the more powerful tools you need.


The accessories you need for a milling machine are a router bit, a spindle to hold the cutter, a vacuum cleaner (if required), guides for making specific shapes or straight cuts, and an additional guide for precise paths.

Power and speed

Both of these factors are closely related to the type of wood used. Most milling machines have speed control, so you can adjust it as needed. Unlike other materials, such as plastics, which should be cut at low speed, wood should be cut at high speed to avoid splintering.

Which of all types of woodcutters is the most commonly used in the woodworking industry?

At the beginning of this article, I asked you a question. Do you know what the most commonly used wood routers in woodworking are? At this point, I’ll tell you that face milling machines are the most widely used of all the types I taught you. They are incredibly engaging. That’s because these tools are easy to use, transport, don’t take up much space, and are inexpensive. In addition, they have plenty of power for their size and speed controls. They offer the perfect balance of functionality, quality, space, price, and equipment. This is especially true when processing small amounts of wood.

Milling wood on a CNC milling machine

The tried and tested CNC High-Z/T milling machine can process hardwoods such as oak, beech, and ebony with high precision. For precision woodworking, the machine’s stability in all axes is crucial, as the resistance of hardwood exerts a large reaction force on the entire machine structure. High-Z T-series ball screws provide increased precision and speed in the milling process without consuming details.

What kind of woodworking do you need a CNC machine for?

Manual milling of complex shapes with traditional tools quickly reaches its limits, such as milling chamfered recesses, rounded corners, or finishing contours for lettering, patterns, or images. By processing calculated milling paths with preset feed speeds and entry depths, CNC routers can perform these 2D and 3D woodworking tasks more accurately and quickly than skilled workers.

CNC woodworking machines instead of traditional tools

This is fast, precise, and cost-effective manufacturing. More and more artisans, journeymen, and hobbyists are using CNC milling machines to process wood products that were previously made by hand. The machines are faster, more accurate, and less prone to error. The operator can use his time more efficiently because he can do other work during production. It even increases profits because wood is used more efficiently due to less material waste. 

Example: Using wood CNC machines for furniture production

Furniture manufacturing is an excellent example of the time savings achieved with a CNC woodworking machines. The carpenter needs to mill grooves in the front and sides of the cabinet to insert partitions and back panels, as well as small holes for fasteners and large round recesses to hide hinges. With an excellent CNC machine, You can cut wood, make wood signs or use it for furniture making! Use Custom CNC cutting and do high accuracy.