Introduction to CNC
A computer numerical control system (referred to as CNC system), is a machine tool CNC system developed in the 1970s, it is the computer running control software to replace the previous hardware CNC system (referred to as NC system) to complete the control of the machine tool. CNC is a computer running CNC control software, in accordance with the CNC machining program of the part to perform some or all of the functions of the numerical control device, the only device outside the computer is the interface. 

What are the basic components of a CNC machine?
CNC system consists of a machining program, input and output devices, a CNC device, a programmable logic controller (PLC), a spindle drive and feed drive, and other components. The CNC system is strictly by the CNC program for automatic machining of the workpiece. CNC machining program by the sequence of parts machining recorded in the machine tool machining of a variety of information required, such as parts machining trajectory information, process information switching commands, and so on.

What is the working process of a CNC system?
The working process of CNC devices is supported by the hardware and implemented by the software.  The working principle of the CNC device is through the input and output devices to input a variety of data information required for the machine tool machining parts. (CNC machining program), drive the CNC system, The CNC system can be used in a variety of ways. to drive the coordinate axes, and at the same time, real-time feedback control is carried out, so that each coordinate axis can be moved accurately to the position required by the instruction. Thus realizing the relative motion of the tool and the work-piece, and automatically completing the machining of the parts.
What are the classifications of CNC lathes?
1. CNC machine tool process use can be divided into:
(1)Metal cutting CNC machine tools such as CNC lathes, machining centers, CNC drilling machines, CNC grinding machines, CNC boring machines, and so on. Machining centers are CNC machine tools with tool magazines and automatic tool changers, which can achieve a variety of processing on a single machine tool; the work-piece only needs to be clamped once to complete a variety of machining, which saves man-hours and improves machining accuracy. The machining center is especially suitable for the machining of box-type and shell-type parts. The turning machining center can complete the processing of all rotary body parts.
(2)Metal forming CNC machine tools such as CNC bending machine, and CNC rotary head press.
(3)CNC special processing machine tools such as CNC wire cutting machine tools, CNC EDM machine tools, and CNC laser cutting machines.
(4)Other types of CNC machine tools such as flame cutting machines, CNC coordinate measuring machines (CMM), etc.

2. Classify by the number of linked axes
According to the linkage axis, CNC machine tools can be divided into the following four types.
(1) 2-axis linkage CNC machine tools. Mainly used for more than three-axis control of the machine tool, in which any two axes for interpolation linkage, the third axis for a separate cycle feed, often referred to as 2.5-axis linkage.
(2) 3-axis linkage CNC machine tools, X, Y, Z three axes can be simultaneously interpolation linkage.
(3) 4-axis linkage CNC machine tools.
(4) 5-axis linkage CNC machine tools. In addition to the simultaneous control of X, Y, Z three linear coordinate axes linkage, but also at the same time to control the rotation around these linear coordinate axes A, B, C coordinate axes in the two coordinates, that is, at the same time to control the five coordinate axes linkage. At this point the tool can be positioned in any position in space.

What are the 5 steps of the CNC machining process?
CNC machining is based on the part drawing and process requirements and other original conditions, the preparation of parts CNC machining program, and input to the CNC control system of CNC machine tools to control the relative movement of the CNC machine tool and the work-piece, so as to complete the machining of parts.
① According to the requirements of the parts drawing determine the parts machining process, process parameters, and tool parameters.
② With the prescribed program code and format to write parts of the CNC machining program. Manual programming and automatic programming methods can be used to complete the parts of the machining program files.
③ Enter the CNC machining program into the CNC system through the CNC machine tool operation panel or by computer transmission.
④ Perform trial runs, tool path simulation, etc. according to the CNC numerical control program.
⑤ Completes parts machining by operating the machine correctly and running the program.
What are the characteristics of CNC machining?
Strong adaptability to processed parts, adapting to the characteristics of single-piece production of products such as molds and other molds, providing a suitable processing method for the manufacture of molds：

• Processing parts with high precision, with stable processing quality.

• Can carry out the linkage of multiple coordinates, and can process parts with complex shapes.

• Processing parts change, generally only needing to change the CNC program, can save production preparation time.

• CNC processing machine tool itself, with high precision, and rigidity, can choose favorable processing dosage, and high productivity (generally 3 to 5 times higher compared to the ordinary machine tools).

• CNC processing machine tools have a high degree of automation, which can reduce labor intensity.

Is conducive to the modernization of production management. CNC machine tools use digital information and standard codes to process and transfer information. The use of computer control methods. Laid the foundation for computer-aided design, manufacturing and management integration.

• Higher quality requirements for operators and higher technical requirements for maintenance personnel.

• High reliability.
  What are the development trends of CNC machine tools?
  (1) High speed
  Speed is directly related to processing efficiency, high speed not only for CNC system data processing and calculation ability has high requirements, and for servo motors, transmission parts, tools, and other components will improve the requirements of modern CNC machine tools spindle speed generally can reach 12000r/min or more, fast feed speed can be as high as tens of meters per minute.
  (2) High precision
  Precision is directly related to the processing quality of the product, micron-level precision CNC equipment is gradually popularized, and the current market of high-precision machine tools can reach the processing accuracy of 0.1μm.
  (3) Intelligent
  In the high-end CNC machine tools, adaptive control technology, man-machine interaction、man-machine conversation。 automatic programming technology, and equipment failure self-diagnosis technology have been applied, so intelligent CNC numerical control machine tools automatically adjust to a better working state, improve programming efficiency, and adapt to a long period of unmanned operation environment.
  (4) Processing multi functionalization
  After clamping the blank in the high-end CNC machining centers, you can continuously complete the milling, reaming, boring and other multi-processing, the most advanced CNC control system to control the number of axes up to 15 axes can be realized 6-axis linkage.

• What are the CNC machining process steps?
  Process arrangement is to carry out CNC machining of the preliminary preparatory work, it must be completed before the preparation of the program, because only after determining the process design scheme, does the programming have a basis, otherwise, if the machining process design is not well thought out, it will often exponentially increase the amount of workload, and sometimes even the occurrence of machining accidents. It can be said that CNC machining process analysis determines the quality of the CNC machining program. Therefore, programmers must do a good job of process design before programming. To summarize, the CNC machining process mainly includes the following.

• Select the parts suitable for machining on the CNC machine, and determine the CNC machining content of the parts.

• Analyze the parts drawings, clear processing content, and technical requirements.

• Determine the machining program of the parts, and develop a CNC machining process route, such as the division of work processes and the arrangement of the machining sequence.

• Design CNC machining processes, such as the selection of the positioning reference of the part, the determination of the fixture program, the division of the work step, the selection of the tool, and the determination of the cutting dosage.

• Adjust the CNC machining program, select the tool setting point and tool change point, determine the tool compensation, and determine the tool path trajectory.

• Assign tolerances in CNC machining.

• Handle some of the process instructions on CNC machines.

• Prepare technical documentation specific to CNC machining.

What parts are suitable for CNC machining?

• Parts with multi-species and small-lot production.

• Parts with complex structure.

• Parts that require frequent re-modeling.

• Expensive, critical parts that do not allow scrapping.

• It urgently needed parts that require the shortest production cycle.

What are the application areas of CNC machining technology?

• Medical industry

• Aerospace industry

• Automotive industry

• Electronics industry

• Energy equipment industry

• Robotics industry

• Military defense industry

How to choose a CNC machining manufacturer?
Choosing a CNC machining manufacturer requires several factors to be considered to ensure that you get high-quality products and satisfactory services. Here are some key factors to consider when choosing a CNC machining service provider:

• Technical capabilities and equipment
• Quality control capability
• Experience and area of expertise
• Production capacity and delivery capability
• Cost and quotation
• Customer service and communication
• Location
• Customer testimonials and word of mouth

Yixin Chuangyan (YMP for short) is a company specializing in the manufacture of precision metal and plastic parts. We are dedicated to providing high-precision and high-quality customized parts for photographic equipment, automotive tuning, bicycle parts, medical equipment, robotics, and new energy.

We have CNC machining, sheet metal working, die-casting, and injection molding technologies, and can process a wide range of materials such as titanium, aluminum, plastic, stainless steel, and copper. We also specialize in surface treatments such as:

• Anodizing
• Sandblasting
• Electroplating
• Laser engraving
• Powder coating
• Painting

Yixin Chuangyan's unwavering commitment to precision, innovation, and customer satisfaction has made us a reliable partner for companies seeking high-quality precision manufacturing solutions. Our products and services have won the praise of our global customers in North America, Europe, and Australia.

Summary

CNC machining is a widely accepted set of processes in part and product manufacturing due to its accuracy, precision, and tolerance. Therefore, making it easy for product designers and manufacturers to create products of different complexity. The widespread use of CNC technology has led to fundamental changes in global manufacturing.