CNC Machining Parts

The world we live in is surrounded by complex technology that is developing at an accelerated rate. Every day, we see a lot of gears and components inside machines, which makes one wonder how they’re made.


Almost all of these products are made with CNC precision machining. Modern manufacturing is based on computer numerical control (CNC), which has enabled parts to be produced in an automated fashion at unimaginable speeds. With CNC precision machining, the manufacturing process has been simplified and more accurate.

The article discusses precision machining, how to perform it, and the tools you need to do it.

Precision Machining: What is it?

The precision machining process involves using a computer-controlled machine tool to manufacture parts. In this process, tight tolerances, high complexity, or both are achieved by high-speed machining.

Machines capable of performing precision machining can be operated by trained precision machinists or high-speed robotics. Machines start with a block and cut material off with cutting tools. Frequently, precision machining is used to make parts that fit together.

Precision machining: why do we need it?

CNC machining is great for making precision parts. Generally, simple machining operations can also be done by hand, i.e., by a skilled machinist manually moving the machine arm onto the workpiece.

The problem is that very fine details and tight tolerances are harder to achieve manually, so computer-controlled systems with digital blueprints are a better bet. There are a lot of reasons why companies might need precision machining parts. Here are some of the more common reasons.


In the case of large assemblies, the close tolerances provided by precision machining are crucial. The dimensions may deviate from the design, making these components unusable if they do not connect properly.

Despite this, consumers or end-users may not wish to be faced with gapping or overhanging where components are supposed to be flush, even if the assembly is technically feasible and the components are supposed to be flush.

Increased value

It is common knowledge that high-quality parts manufactured to close tolerances can be sold for higher prices due to precision machining. So, manufacturers are naturally inclined towards adapting to CNC precision machining services.

It may also be necessary to have precision in cosmetic or otherwise visible parts where imperfections or deformities are unacceptable.

For products with visible blemishes or safety concerns (with accidentally sharp edges, for example), standard machining may be required for the internal components, and precision machining for the external or surface components.

How does CNC precision machining benefit you?

Compared to conventional machining methods, CNC precision machining can be a bit more expensive. It is worth the extra investment, however, because of the benefits it offers. The following are a few of those benefits:

Tight Tolerances

Regarding CNC precision machining, tight tolerances are primarily the purpose for which it is used. In machined parts, there is a slight deviation from CAD blueprints in their size.

Through the use of specialized processes and cutting tools, CNC precision machining can minimize tolerances to the bare minimum.

Consequently, the parts produced as a result of this process are more accurate than the original blueprints.

High Accuracy

Precision machining creates highly accurate products as a result of the tight tolerances that are so characteristic of the process.

The majority of precision machining processes are performed on components and parts that must be interconnected with each other to function effectively.

Therefore, these parts must be made as accurately as possible for them to perform flawlessly in the future.

An excellent repeatability rate

In the manufacturing sector, repeatability is a key concept that drives the performance of the production process. In order to meet the expectations of an end-user, all the parts produced through a particular process should have the same appearance.

This is where precision machining shines. A CNC machining process can match each part to the original, with a wide range of tolerances, to create exact replicas.

Cost-effective production

It is true that precision machining has fewer defects as it does not have any deviations caused by the machine. Thus, a lower rejection rate can be achieved for the parts manufactured in this way. Due to this, materials are more affordable.

Furthermore, the use of computer-aided manufacturing allows labor costs to be reduced since it is an automated process. CNC machining, in conjunction with reduced labor costs, results in a reduction in production costs as compared to alternatives.

Efficiency and speed

With precision machining, you can produce parts faster than you can manually on a conventional lathe due to high-speed robotics.

Also, since the parts are highly accurate and have tight tolerances, there is no need to do secondary processing after they have been produced.

It will be a great asset to the workshop if it is able to increase productivity and efficiency through faster production.

Where can I find precision-machined parts to outsource?

Due to the high level of skill involved in precision machining, many businesses outsource their machining jobs to achieve high-quality results.

Purchasing precision CNC machining services from an outside company is very similar to ordering standard machined parts.

The original design of precision machine parts is created using specialized tools and equipment to ensure that the highest level of accuracy is guaranteed throughout the manufacturing process.

There are a number of different materials that can be used to create these parts, including metals, alloys, plastics, and a variety of other materials.


If you want the highest level of dimensional accuracy without sacrificing the value of your product, precision machining is the best method to achieve this.

This is one of the reasons why it has become so popular for prototyping and mass production due to its ease of use.

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