Things to know about CNC machining

Things to know about CNC machining
CNC – Computer(ized) Numerical(ly) Control(led) – automatic control technology by computer.
The birth of CNC technology marked a new step in the mechanical processing industry. Products manufactured using this technology always provide a high level of reliability. Moreover, repeating a fully automated production process also saves time and costs compared to before.
But that’s just a general concept that you can easily find with just one keyword “cnc machining” when searching on google. But, to understand more deeply, in more detail about CNC technology with questions such as: What products are suitable for manufacturing by CNC technology? Or the principle of operation, what materials can be used in the production process using CNC machines?
And to answer the above questions, please immediately refer to this article of Cosmo Vietnam .
This article not only gives the basic concepts and operating principles, but we also talk about the advantages of CNC manufacturing compared to traditional manufacturing, as well as the contributions of CNC to the machining industry. modern mechanics.
What is CNC Machining?
– CNC stands for the English phrase (Computer(ized) Numerical(ly) Control(led)) which means “Computer Numerical Control” in Vietnamese.
In simple terms, CNC machining is a manufacturing process performed by a robot, all processes are carried out automatically without the need for an operator to be present continuously.
History of formation and development of CNC machining
– The precursor of CNC technology is numerical control (NC – Numerical Control). This technology was born as a turning point marking the beginning of the second industrial revolution. As the control of industrial machines and processes moves from imprecise manuscripts to exact science.
– In the 1940s and 1950s, CNC machining emerged only as a technology based on punched tape. And it wasn’t until 1960 that the technology developed into the digital and computer-controlled technology we use today.
– Machining was invented in 1751. Then, in 1952, Richard Kegg collaborated with the Massachusetts Institute of Technology (MIT) to develop the first CNC milling machine.
How does CNC machining work?
– CNC machines operate on the principle of setting up production processes in computer software. Then connect the computer to the production machinery. The CNC system will then carry out the production process according to the preset program, all processes are done automatically like a robot.
Differences between different types of CNC machines
Currently, in the mechanical processing industry, there are many different types of CNC machines to serve the diverse requirements of customers.
Some of the most popular types of CNC machines today include:
Grinder
Lathe
Router
Plasma cutting machine
LaserJet Cutter.
Applications of CNC machines
– Most of the machines used in the mechanical processing industry in the past did not have too many functions. They are usually only used to produce a certain type of finished product or material. However, with CNC machines, it is completely different. This machine system can be used to produce a variety of products from many different materials, for example: metal, plastic, foam and wood…
– We will show you some applications of CNC machines below:
+ CNC metal lathe: used for machining round bar, thread and outer circle.
+ CNC milling machine: used for machining on surfaces, keyways or special shapes.
Drilling machine: This is a machine whose main function is to drill holes.
Advantages and disadvantages of CNC machining
Although diverse in terms of features and applications, CNC technology still has certain advantages and disadvantages. So what are the advantages of this technology, and do the outstanding disadvantages affect the production process and product quality too much? Let’s find out together!
Advantages
– CNC machining is considered to have a significant cost advantage over traditional manufacturing thanks to a large reduction in labor costs. Furthermore, this technology also significantly reduces the margin of error in manufacturing to the lowest level. Easier mass production, the ability to provide consistent uniform copper output.
More flexible design workflows by allowing software to be quickly reprogrammed to create entirely new parts or correct flaws.
Defect
The main disadvantage of CNC machining is the initial setup cost. Most companies without large investment capital will be very afraid to invest in this technology system.
Because most of us believe that computer technology will always give absolutely accurate results. Therefore, CNC machining is also set up on the computer with the assumption of no errors. This makes some people when using this technology outsourcing system will ignore the possibility of errors, making errors easy to slip through without being noticed to fix.
– The final disadvantage, because CNC is an industrial machine system, it will generate waste, which can cause some adverse effects on the natural environment. Therefore, businesses must have waste management processes in a scientific way so as not to affect our living environment.
The influence of CNC machining on the modern mechanical processing industry
– It can be said that CNC machining has opened up a new form of modern mechanical manufacturing through higher efficiency and accuracy of finished products.
– Companies using CNC machining technology also save significantly on labor and time costs, thereby not only increasing profits but also ensuring long-term cooperation with customers. row.
– One thing worth mentioning here is safety at work. With the traditional processing process with somewhat rudimentary working machines, the quality is not guaranteed, which has led to a lot of accidents in labor. With CNC technology, this situation has been significantly improved. In addition, it is also considered an ideal choice for manufacturing because the machines are flexible and can be reprogrammed.
Above is an article about CNC machining. We hope that the information we provide in this article is useful to you. In addition, if you want to learn more about CNC machining technology, you can refer to our following two articles: Types of turning in mechanical processing or CNC software used in the machining industry mechanical