7 Reasons Why CNC Machining Beats Traditional Machining

7 Reasons Why CNC Machining Beats Traditional Machining

In recent years, CNC machining has steadily overtaken the traditional machining industry. The term "CNC" literally means "Computer Numerical Control". The technology was originally introduced to reduce labor and make the production process faster and better. Ultimately, both CNC and conventional machining are designed to achieve one goal: producing high quality machined parts. The main difference lies in their methods and the fact that one option requires manual labor, while the other boasts a 90% level of automation.

It's no surprise, then, that major manufacturing companies have recently turned to the power of utilizing CNC machining over traditional methods. Industries such as healthcare, military, and aerospace require precision parts with tolerances as tight as +/- .0005, which is difficult to achieve through traditional machining. However, perfection isn't the only advantage of CNC machining.

Here are some of the main reasons why CNC machining has become a favorite.

1. Reduced labor costs; one experienced machinist for multiple machines

In the case of traditional machining, each machine requires a specialized technician with experience, skill and extensive knowledge of the machine. In contrast, CNC machining is largely controlled by software programs that require little human interaction beyond initial setup and data entry. CNC machining also requires less advanced training, further reducing labor costs. With computers playing an important role, the potential for human error and compromised workplace safety is also greatly reduced.

2. Large quantities; best quality

Due to the need for manual labor, traditional machining is mostly suitable for small, low-volume projects. However, CNC machines are designed to provide maximum precision, whether they are tasked with producing dozens or thousands of metalworking parts. Their high-quality materials make them resistant to wear and tear, which is common in traditional machining. As a result, they can operate 24 hours a day with prompt and rapid maintenance. Additionally, CNC machining utilizes advanced software that can be updated regularly according to specifications in order to easily manufacture ultra-complex parts.

CNC machines are also equipped with automatic cooling systems to reduce the chances of heat damage. Many advanced machine models are equipped with built-in chip storage and conveyor belts for chip management.

3. 100 times better part reproduction

CNC machines are designed to control precise speed and positioning and can produce thousands of 100% identical parts in record time, a feat impossible with handheld or conventional machining. Machines can be programmed to repeat the same cuts or the same finishes without compromising the quality of the parts being machined. However, conventional machining requires a skilled operator to manually place tools at each step of the process, which obviously requires a great deal of time and patience. Even then, highly skilled operators are not able to produce 100% identical parts.

4. No need for prototypes

Before the advent of CNC, every manufacturer would develop an operational prototype, run it through a test run, and then proceed with the machining process. If done manually, the entire process usually took days or even months. The introduction of CNC machines brought with it software programming where you can enter your design and visualize if you can use it in a realistic scenario. This means no additional prototyping costs, shorter production times and minimal labor costs.

5. Complex Part Development Capabilities

CNC machines can be reprogrammed and updated at any time, giving them the freedom to produce 3D, 4D and even 5D parts with ease. This allows for a smoother transition between regular CNC machined part production and complex part production. Additionally, the software can store designs so you can revisit any desired shape or other design more quickly.

6. Primary focus on specifications

CNC machining is designed to focus on precision, with machines adhering firmly to the specifications provided by their operators. Throughout the production process, each step is rigorously tested to ensure the desired results and dimensions are achieved.

7. Suitable for a wide range of material types

This is probably the biggest advantage of CNC machining over traditional machining. CNC machines can utilize almost any type of material, including metal, steel, wood, foam or sensitive plastics.

8. CNC Machining Adaptability

CNC machining provides top-notch accuracy, precision, and speed for both large and small batches, making it a very favorable option for manufacturers in a variety of industries.