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CNC vs Milling Machines: What's the Difference and Which One Should You Choose?

CNC machines and milling machines are both essential tools in modern manufacturing processes. While both are used to remove material from a workpiece, they differ significantly in their approach. Understanding the differences between these two types of machines is crucial for anyone in the manufacturing industry.

CNC Machines

CNC stands for "Computer Numerical Control." CNC machines are highly automated and controlled by a computer program. This program tells the machine exactly how to move and cut the material. CNC machines are incredibly precise and can produce parts with extremely tight tolerances. They can also be programmed to create complex shapes that would be impossible with manual machining.

Milling Machines

Milling machines are a more traditional tool used in manufacturing. They remove material from a workpiece by cutting with a rotary tool. Milling machines can be manual or computer-controlled. They are versatile and can work with a wide range of materials, including metal, wood, plastic, and more.

Differences Between CNC Machines and Milling Machines

The primary difference between CNC machines and milling machines is the level of automation. CNC machines are fully automated and require very little human input. Milling machines, on the other hand, require a skilled operator to operate the machine. Additionally, CNC machines can produce more complex shapes than a milling machine.

Another difference between these tools is the cost. CNC machines are much more expensive than milling machines due to their high degree of automation and precision. For this reason, CNC machines are typically only used for high-volume production runs.

Choosing Between CNC Machines and Milling Machines

When choosing between CNC machines and milling machines, there are several factors to consider. If you need to produce complex parts with a high degree of precision, a CNC machine is the way to go. However, if you only need to produce simple parts or you have a skilled operator who can operate a milling machine, a milling machine may be the better option.

Additionally, cost is a significant factor to consider. CNC machines are much more expensive than milling machines. For this reason, you should only invest in a CNC machine if you have significant production needs.

Conclusion

In conclusion, both CNC machines and milling machines are valuable tools in modern manufacturing. While CNC machines are more expensive and require less human input, milling machines are versatile and can be operated by skilled workers. When deciding between the two, consider your production needs, the complexity of your parts, and your budget.

cnc vs milling machine

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OUR SERVICES

CNC Machining

Equipped with 3-4-5 axis CNC milling and CNC turning machines, which enable us to handle even more complex parts with high precision.

Rapid Injection molding

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Sheet metal

Our talented sheet metal engineers and skilled craftsmen work together to provide high quality custom metal products.

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We offer SLA/SLS technologies to transform your 3D files into physical parts.

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About Us

What can we do?

Sigma Technik Limited, as a prototype production company and rapid manufacturer focusing on rapid prototyping and low volume production of plastic and metal parts, has advanced manufacturing technology, one-stop service, diversified manufacturing methods, on-demand manufacturing services and efficient manufacturing processes, which can provide customers with high-quality, efficient and customized product manufacturing services and help customers improve product quality and market competitiveness.

CNC Machining Case Application Field

CNC machining is a versatile manufacturing technology that can be used for a wide range of applications. Common examples include components for the aerospace, automotive, medical industries and etc.

Automotive components

Aerospace components

Medical components

Metal and plastic processing

Clear optical prototype for CNC machining

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CNC Machining FAQs

Get the support you need on CNC machining and engineering information by reading the FAQ here.

It may be caused by unstable processing equipment or tool wear and other reasons, so it is necessary to check the equipment and tools in time and repair or replace them.

It may be due to severe wear of cutting tools or inappropriate cutting parameters, which require timely replacement or adjustment of cutting tools or adjustment of machining parameters.

It may be caused by programming errors, program transmission errors, or programming parameter settings, and it is necessary to check and modify the program in a timely manner.

It may be due to equipment imbalance or unstable cutting tools during the processing, and timely adjustment of equipment and tools is necessary.

The quality and usage method of cutting fluid can affect the surface quality of parts and tool life. It is necessary to choose a suitable cutting fluid based on the processing materials and cutting conditions, and use it according to the instructions.

It may be due to residual stress in the material and thermal deformation during processing, and it is necessary to consider the compatibility between the material and processing technology to reduce part deformation.