CNC milling (computer numerical control milling) is a subtractive manufacturing process in which computer-controlled milling cutters remove material from a workpiece to shape it into the desired form. Milling tools are moved in different axes to create precise cuts and shapes.

There are three main types of CNC milling machines, which differ in terms of the number of axes:

• 3-axis milling: Operates in the X, Y and Z axes and is suitable for simple to medium-difficulty work.
• 4-axis milling: Adds a rotation axis (A-axis) to the 3-axis machine and enables more complex machining operations.
• 5-axis milling: Adds an additional B-axis, which offers maximum flexibility and precision when machining highly complex parts.

CNC milling can machine a variety of materials, including metals such as aluminium and steel, plastics, wood and even ceramics. The choice of material depends on the application and the specific requirements of the project.

High precision: CNC milling enables extremely precise machining, which is particularly important for complex and detailed parts.

Repeatability: The computerised control system ensures that each part is produced exactly like the next.

Efficiency: Automation allows large quantities to be produced in a short time.

Safety: Physical interaction between operator and machine is minimised, which increases safety.

CNC milling is used in many industries, including:

Automotive: manufacturing engine components, gearboxes and other precision parts.
Aerospace: production of aircraft parts that require high precision.
Medical technology: production of surgical instruments and implants.
Furniture manufacturing: Creation of modern and unique pieces of furniture.
Prototyping: Rapid production of prototypes from plastic and other materials.

There are different types of routing tools, including

End mills: For slotting and profiling.
Face milling cutter: For smooth surfaces.
Ball end mills: For detailed contours and 3D carving.
Drill bits: For precise drilling work.

The choice of the right machine depends on the specific requirements of the project:

3-axis machines are ideal for simpler parts and less complex geometries.
4-axis machines offer more flexibility and can machine more complex parts.
5-axis machines are the best choice for highly complex and precise machining, but they are also more expensive and more difficult to operate.

The CNC machining process begins with the programming of the CNC milling machine. The programme can be entered locally directly on the CNC milling machine. However, it is also possible to create the programme on a computer using a CAD/CAM system.

We use the latest generation of CAD Autodesk Inventor and Inventor CAM software for programming the CNC programmes. The data set (STP) provided by you enables us to convert 100% of the data into a programme and to fulfil all dimensional specifications.

Once a blank has been cut to size on a CNC saw, the component can be clamped in the CNC milling machine.

Now the CNC machine is set up for machining the component. For this purpose, it must now be determined with which clamping technology the component can be fixed in the CNC milling machine.

There are several clamping options for CNC machining. Either the component is fixed in a vice, a clamping system, a special clamping device or on a vacuum chipboard.

Once the blank has been clamped / fixed, the CNC milling machine can be started.

Each of our CNC milling machines is equipped with many machining tools in a so-called tool changer. This enables a smooth and rapid CNC machining process.