CNC wire cutting technology

CNC wire cutting technology uses a continuously moving thin metal wire (called electrode wire) as a tool electrode to perform pulse discharge to erode the metal of the workpiece, thereby realizing the cutting process of the workpiece.

 

During the processing, a certain discharge gap is always maintained between the electrode wire and the workpiece. When the pulse voltage generated by the pulse power supply is applied between the electrode wire and the workpiece, spark discharge will be generated in a very short time, causing the local metal on the surface of the workpiece to melt and vaporize instantly and be eroded. By controlling the movement trajectory of the electrode wire through the CNC system, various complex shapes of workpieces can be accurately cut.

 

 

1. Fast wire cutting

Fast wire cutting is a wire cutting processing technology created in my country. The electrode wire usually uses molybdenum wire and moves back and forth at a high speed (generally 8-10m/s).

The advantages of fast wire cutting are high processing efficiency and low cost, and it is suitable for processing workpieces with relatively low precision requirements. However, its processing accuracy and surface quality are relatively low, and it is generally suitable for medium and low precision mold manufacturing and parts processing.

 

2. Slow-wire wire cutting

The electrode wire of slow-wire wire cutting is usually made of copper wire or brass wire, which moves unidirectionally at a low speed (generally 0.2-0.5m/s).

The advantages of slow-wire wire cutting are high processing accuracy and good surface quality, which can achieve nanometer-level processing accuracy. However, its processing efficiency is relatively low and the cost is high. It is suitable for processing workpieces with extremely high precision requirements, such as precision parts in the aerospace field and micro parts in the electronic and electrical industry.

 

 

1. High precision

CNC wire cutting technology can achieve high-precision processing, especially slow-wire wire cutting, which can achieve nanometer-level processing accuracy. This gives it unique advantages in manufacturing high-precision molds, precision parts, etc.

Since the diameter of the electrode wire is very small, usually between 0.05-0.3mm, it can cut very small gaps and complex shapes to meet the needs of various high-precision processing.

 

2. Strong ability to process complex shapes

CNC wire cutting technology can control the movement trajectory of the electrode wire through the CNC system to achieve the processing of various complex-shaped workpieces. Whether it is a two-dimensional plane figure or a three-dimensional shape, it can be easily cut and processed.

For workpieces with complex structures such as sharp corners, narrow slits, and deep grooves, CNC wire cutting technology can also show excellent processing capabilities, which is difficult to achieve with other processing methods.

 

3. No specific tool required

Unlike traditional mechanical processing methods, CNC wire cutting technology does not require the use of specific tools. The electrode wire can be replaced according to processing needs, and the cost is relatively low.

This makes CNC wire cutting technology have good adaptability when processing materials of various hardnesses, whether it is high-hardness materials such as cemented carbide and hardened steel, or soft materials such as aluminum alloy and copper alloy, they can be effectively processed.

 

4. Environmental protection of the processing process

No cutting force is generated during CNC wire cutting processing, and no cutting waste and noise pollution will be generated. At the same time, due to the use of water-based working fluid for cooling and chip removal, the processing process is relatively environmentally friendly.

This makes CNC wire cutting technology widely used in some occasions with high environmental requirements, such as electronic and electrical manufacturing, medical equipment manufacturing and other fields.

 

 

1. Mold manufacturing

CNC wire cutting technology plays an important role in mold manufacturing. It can be used to manufacture various stamping molds, injection molds, die-casting molds, etc. Through precise processing, the dimensional accuracy and surface quality of the mold can be guaranteed, and the service life and production efficiency of the mold can be improved.

For example, in automobile mold manufacturing, CNC wire cutting technology can process complex automobile cover molds, providing strong support for the development of the automobile industry.

 

2. Aerospace field

In the aerospace field, the precision and quality requirements of parts are extremely high. CNC wire cutting technology can process various high-precision aerospace parts, such as aircraft engine blades, spacecraft structural parts, etc.

These parts usually have complex shapes and strict dimensional accuracy requirements. CNC wire cutting technology can meet these requirements and contribute to the development of aerospace industry.

 

3. Electronic and electrical industry

Many parts in the electronic and electrical industry are small and precise. CNC wire cutting technology can process various micro parts, such as mobile phone chips, electronic connectors, etc.

At the same time, CNC wire cutting technology can also be used to manufacture printed circuit boards (PCBs), providing important technical support for the development of the electronic and electrical industry.

 

4. Medical device manufacturing

Medical device manufacturing has very high requirements for the precision and hygiene of parts. CNC wire cutting technology can process various high-precision medical device parts, such as artificial joints, dental instruments, etc.

 

Since the processing is environmentally friendly and will not cause pollution to the parts, CNC wire cutting technology has been widely used in the field of medical device manufacturing.