What is five-axis machining?

2025-09-15

Five-axis machining allows simultaneous milling of five axes in a single setup: three planar axes and two rotary axes. Compared to three-axis machines, which require additional milling, a five-axis machine can mill more complex parts and shapes faster. The advantages of five-axis milling are particularly pronounced when machining complex shapes, as the milled part does not need to be moved. This technology improves efficiency, saves time, and speeds up the machining process.


Five-axis machining is one of the most complex processes in CNC machining. However, when performed well, it can achieve:

High-precision machining,

Closest tolerances,

Excellent surface finish,

Higher productivity.


What distinguishes five-axis CNC machining from other types of milling?

The meaning is implicit in the name of the process: a milling machine can simultaneously shape an object in five axes. Unlike three-axis CNC machines, spindle machining can achieve shape in a single smooth motion and a single setup.

Parts milled on a five-axis machine can be finished on unformed surfaces without moving to another workstation. The entire machining process can be completed in a single, continuous run. Five-axis machining is highly efficient when milling complex geometries. Therefore, it can reduce cycle times for forming material blocks.

What types of materials can 5-axis milling machines process?

5-axis milling machines can produce parts made from a wide variety of materials to meet customer needs and preferences. These materials vary in their physical properties (hardness, machining type, thermal conductivity, etc.), but they all have one thing in common: they can all be machined on a 5-axis CNC milling machine.


At Nuote Metals, we can machine the following materials:

Aluminum (cast and solid),

Copper,

Brass,

Plastics (such as POM).


What are their uses and properties?

Aluminum

The use of aluminum in 5-axis milling is very common due to its properties. Aluminum alloys are popular in CNC milling due to their high durability, low weight, good electrical and thermal conductivity, and inherent corrosion resistance. Their mechanical properties and overall good machinability make them ideal for 5-axis machining.


Copper

Copper has excellent thermal and electrical conductivity. Furthermore, its softness makes it easy to mill. Copper blocks are often formed on five-axis machines and are particularly well-suited for the following industries:

Medical – copper has antibacterial properties and can withstand repeated sterilization;

High energy – due to its high electrical conductivity;

Automotive;

Electronics.


Brass

Like copper, brass also has excellent electrical conductivity, but its alloys containing copper and zinc produce less surface friction. Its excellent engineering properties, high-temperature resistance, and good machinability make it a popular choice for five-axis milling.


Plastics, such as… POM

POM (polyoxymethylene) is a polymer with good thermoplastic properties and a high melting point (175°C/347°F). This material has good mechanical properties and is easy to machine, enabling complex parts to be formed using five-axis machining. Components made from POM exhibit high stiffness and stability, making them ideal for cost-effective manufacturing of parts requiring good vibration isolation.

The Key Advantages of Five-Axis Milling

The possibilities created by five-axis milling have attracted the attention of numerous industries. The primary reason is obvious: it can produce complex part shapes quickly, with excellent repeatability, and to extremely tight tolerances.


Five-axis milling also offers key advantages:

Nearly unparalleled milling accuracy—part shapes of all shapes can be machined on a single machine. The process eliminates the potential for human error during machine switching;

Higher productivity—milling a single part takes less time. This increases part output;

Time and cost savings for operators and customers. Five-axis milling is faster, often requiring only a single CNC machine to program. Higher workpiece processing speeds can also yield additional benefits, such as shorter lead times or more efficient use of labor hours.


Applications of Five-Axis Milling

For companies focused on CNC machining, five-axis milling machines enable the production of high-volume, highly complex parts. This technology enables fast, flexible, and, most importantly, precise part production for a wide range of industries:

Automotive: CNC turning Parts such as turbocharger impellers, which require high precision and perfect balance due to their high speeds;

Furniture: For example, delicate decorative pieces made of aluminum or copper;

Aerospace: For example, jet engine rotors and their components;

All other industries requiring high-precision milling of complex shapes.


At Nuote Metals, we have a team of experienced CNC operators who pay close attention to detail and strive to deliver the highest quality end products. Our milling methods enable us to work quickly and efficiently—thanks also to our 5-axis milling system. We welcome your visit and consultation.


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