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Basic knowledge of Fiber Laser Cutting Machine

Basic knowledge of Fiber Laser Cutting Machine

 

In metal processing, the fiber laser cutting machine, with its advantages of high efficiency and high quality, gradually replaces the traditional process and becomes a weapon in the metal processing industry.

But even if they are also called fiber laser cutting machines, the processing efficiency and effects of different equipment inside will vary greatly. For fiber laser cutting machines, the six core accessories must be looked at when purchasing.

1. Fiber laser

Laser is the most important “power source” of laser equipment, just like car engine, it is also the most expensive part of fiber laser cutting machine. At present, imported brands of fiber lasers on the market include German IPG, ROFIN, British SPI, American coherence, etc. With the development of technology, domestic laser brands such as Ruike and Chuangxin have also emerged, and are gradually recognized by the market with high cost performance.

For a long time, China’s lasers have basically relied on imports, which are expensive and have a long supply cycle, resulting in high prices for high-power fiber laser cutting machines. The emergence of the Chinese fiber laser manufacturer’s blooming situation has broken the monopoly of foreign companies in the laser field and directly lowered the price of imported products.

2. Cutting head

The cutting head is a laser output device of a fiber laser cutting machine, which is composed of a nozzle, a focusing lens and a focusing tracking system. The cutting head of the laser cutting machine will walk according to the set cutting trajectory, but under different materials, different thicknesses and different cutting methods, the height of the laser cutting head needs to be adjusted and controlled.

3. CNC system

The control system is the leading operating system of the fiber laser cutting machine, mainly to control the machine tool, realize the X, Y, Z axis movement, and also control the output power of the laser. Its quality determines the stability of the operation performance of the fiber laser cutting machine. Through the precise control of the software, it can effectively improve the accuracy and cutting effect. Currently commonly used Beckhoff (Beckhoff) CNC system, PA CNC system, Farianka system, etc.

4. Motor

The motor of the laser cutting machine is the core component of the motion system. The performance of the motor directly affects the processing effect and production efficiency of the product. At present, the commonly used motors include stepper motors and servo motors. According to the industry type and product type of the processing object, the configuration The most suitable motor

Stepper motor: fast start-up speed, sensitive response, suitable for engraving and less demanding cutting. The price is lower. There are many brands of stepper motors with different performances.

Servo motor: fast movement, smooth movement, high load, stable performance; smooth edges of processed products, fast cutting speed; high price, suitable for industries and products with high processing requirements.

5. Machine tool

The fiber laser cutting machine has very high requirements on the stability of the machine tool. The machine tool with high precision and high stability is conducive to improving the accuracy of laser cutting. At present, the mainstream machine tools on the market are gantry type, cantilever type, beam type, etc. Different machine tools have different functions. For example, beam type machine tools are mainly used for material cutting by large manufacturers, and there are also models for specific fields, such as 3D fiber laser cutting. , Mainly used in the automotive industry.

6. Laser lens

Laser lenses are the most used in the entire fiber laser cutting equipment. Many optical devices contain laser lenses. Different lenses have different functions, including full-reflective lenses, semi-reflective lenses, focusing lenses, and so on.

The quality of the lens directly affects the output power of the laser, and also affects the performance of the whole machine. The lenses are also divided into domestic and imported. The life span and cutting effect of domestic lenses are not as good as imported lenses, but the price is far cheaper than imported lenses.

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