HE Laser - How Fiber laser Cutting Machine Work?


Fiber laser cutting machines have revolutionized industrial cutting processes, providing high precision and speed. Understanding the working principles of these machines is essential for anyone interested in the manufacturing field. In this blog, we will delve into the fascinating world of fiber laser cutting machines and explore how they work.

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1. Basic Structure of Fiber Laser Cutting Machine: 

A fiber laser cutting machine typically consists of a fiber laser source, fiber transmission system, fiber laser cutting head, and laser cutting platform. The fiber laser source generates a high-energy density laser beam, which is transmitted to the cutting head through the fiber transmission system. The fiber cutting head focuses the laser beam into a small spot through a lens, allowing it to come into contact with the workpiece for cutting.

2, Working Principle of Fiber Laser Cutting: 

Fiber laser cutting machines utilize the interaction between the laser and the material to achieve cutting. When the laser beam is focused onto a small spot, the energy density in that area is extremely high, heating the material to a very high temperature. This leads to oxidation, vaporization, or melting of the material, creating a cut.

3, Advantages of Fiber Laser Cutting: 

Fiber laser cutting machines offer numerous advantages over traditional cutting techniques. For instance, they enable high precision and speed, allowing for cutting of various types of materials including metals, plastics, and glass. Additionally, due to the small spot size of the laser, the heat-affected zone during cutting is minimized, reducing deformation and thermal stress.

For example, fiber laser cutting machines are widely used in the automotive manufacturing industry. They can be used for cutting automotive sheet metal parts such as car bodies and door panels. With their high-speed and high-precision capabilities, fiber laser cutting machines greatly improve production efficiency and product quality. Furthermore, fiber laser cutting machines are also used for cutting customized car seat frames according to different models and sizes.

4, Fiber Laser Cutting Head and Auxiliary Systems: 

The fiber laser cutting head is a crucial component of the fiber laser cutting machine. It typically includes a lens, focusing mirror, and nozzle. The lens and focusing mirror work together to focus the laser beam into a small spot for high-quality cutting. The nozzle guides the cutting gas into the cutting area and removes smoke and molten material from the cutting zone.

For instance, when cutting thicker metal materials, a cutting head with a larger diameter nozzle may be required, along with higher laser power to achieve sufficient cutting capability. On the other hand, when cutting thinner materials, a smaller diameter nozzle might be used to achieve better cutting precision.

5, Material Adaptability: 

Fiber laser cutting machines can be used for cutting various types of materials, including stainless steel, aluminum, copper, alloy steel, etc. Different types of materials, have distinct cutting characteristics and requirements. Therefore, adjustments need to be made to the cutting parameters for each material.

For example, when it comes to different types of metal materials, fiber laser cutting machines can adjust cutting speed, power, gas type, and gas flow to achieve optimal cutting results. For thicker stainless steel, higher laser power and appropriate gas jetting may be needed to accelerate material oxidation and evaporation, thereby achieving higher cutting speeds.

6, Applications of Fiber Laser Cutting Machines: 

Fiber laser cutting machines find wide application in various fields. They are used to cut aircraft structural components and engine parts in the aerospace industry. In the construction and decoration industry, they are utilized for cutting metal sheets and steel structures. In the medical device manufacturing sector, they are used to create precision incisions and instrument parts.

For instance, in the aerospace industry, fiber laser cutting machines are commonly used to cut aircraft structural components, such as aluminum alloy sheets and titanium alloy materials. These structural components often require high-precision, high-quality cutting edges to ensure material strength and overall performance.

7, Future Development Trends: 

Fiber laser cutting technology is continuously advancing and innovating. With the ongoing progress in laser technology, future fiber laser cutting machines will feature higher power and a larger cutting range to cater to a wider range of materials and application needs. Additionally, the development of automation and intelligence will enhance cutting efficiency and precision while reducing operational complexities.

In conclusion, 

understanding the working principles of fiber laser cutting machines is crucial for readers to better comprehend and apply this technology. By providing a detailed description of the machine's structure, working principles, advantages, cutting heads and auxiliary systems, material adaptability, application fields, and future development trends, you will gain a deeper understanding of fiber laser cutting machines and achieve better results in practical applications.