On the stage of industrial manufacturing, laser cutting technology is like an extremely precise artist, reshaping our understanding of material processing with its unique charm and unlimited potential. Today, let us explore the secrets of this “modern craftsman” and uncover the mystery of laser cutting technology.
Imagine a beam of light so sharp that it can penetrate steel. This is not just a plot in a science fiction movie, but a miracle in reality. Laser cutting is not only fast, but also highly precise. The error can be controlled at the micron level. This is undoubtedly a revolution for precision manufacturing.
Laser cutting technology is an advanced cutting technology in the world that combines the essence of optics, mechanics, computer control and other disciplines.
Laser cutting machines use high-power density laser beams to irradiate workpieces to quickly melt, vaporize or ablate materials to achieve processing purposes.
The core of this technology lies in a small and concentrated laser beam. After being focused through an optical system, this laser beam can concentrate the energy in a very small area, causing the irradiated material to be rapidly heated to melt or vaporize in a very short period of time. temperature.
As the laser beam moves, precise laser cutting gaps are formed in the material. In order to improve the cutting effect, auxiliary gas is usually used to help blow away the molten material and make the cutting process cleaner and smoother.
Features of laser cutting
Due to the small laser spot and high energy density, and compared with traditional mechanical cutting, laser cutting does not need to contact the material surface, does not produce mechanical stress, and the material deformation is extremely small. Therefore, laser cutting has narrow slits, high quality finished products, and high precision.
Laser cutting has fast cutting speed and high degree of automation. It can realize continuous cutting of complex patterns through computer programming, greatly improving production efficiency.
Laser cutting has no restrictions on the shape of the workpiece and has unlimited profiling cutting capabilities. This means that whether it is a simple or complex part, laser cutting can accurately and quickly shape the cut in one pass.
Laser cutting has good adaptability to materials. It can not only cut hard and brittle materials, such as glass, ceramics, PCD composite sheets,stent and semiconductors, but also can cut soft and elastic materials, such as plastics, rubber, etc., and can handle There are a wide variety of materials, covering almost all common industrial materials.
Of course, in addition to the above advantages, laser cutting also has some limitations.
(1) The equipment is more expensive.
As a high-power heavy industrial equipment, laser cutting machine costs tens of thousands to one million per piece.
(2) There are restrictions on cutting plates.
Due to limitations of laser power and equipment volume, laser cutting can only cut plates and pipes of medium and small thickness, and as the thickness of the workpiece increases, the cutting speed decreases significantly.
Laser cutting application range
In the field of application, laser cutting technology is everywhere. From automobile manufacturing to aerospace, from the electronics industry to medical equipment, to the metal crafts in our daily lives, laser cutting technology plays a silent role behind the scenes, making it one of the most mature technologies in laser processing technology. .
Laser cutting technology has many application forms, including vapor cutting, fusion cutting, oxygen-assisted melting cutting and controlled fracture cutting.
Vaporization cutting is mainly used for extremely thin metal materials and non-metallic materials, such as paper, cloth, wood, plastic, etc., because such materials can be directly turned into vapor under the action of laser and removed.
Fusion cutting is used for thicker metal materials, such as stainless steel, aluminum, etc. The material is heated to the melting point by a laser beam, and then the molten material is removed with the help of high-speed airflow to complete the cutting.
Oxygen-assisted melting cutting combines the high energy density of lasers with the chemical reactivity of oxygen to achieve high efficiency and high-quality material cutting.
The material is heated to ignition temperature by a laser, and then high-pressure oxygen or other reactive gases are injected. These reactive gases undergo an oxidation reaction with the heated metal material, generating a large amount of oxidation heat, thereby forming cuts on the material.
Controlled fracture cutting is mainly suitable for brittle materials that are susceptible to thermal damage. The laser beam is mainly used to rapidly heat a small area of the material, thereby producing a large thermal gradient and severe mechanical deformation on the material, resulting in cracks inside the material, thereby achieving cutting.
Laser cutting and primary and secondary education
Today, laser cutting machines are no longer equipment that can only be operated by senior professionals. Many primary and secondary schools are equipped with small and medium-sized laser cutting machines as essential equipment for engineering education, scientific and technological activities, labor education, information technology and other courses.
Learning laser cutting technology can not only help primary and secondary school students understand modern digital processing technology and learn two-dimensional and three-dimensional drawing design technology, but also help them master an important skill to realize their own creativity, while significantly improving their scientific literacy. .
In addition, we can also use laser cutting technology to realize the design of teaching aids, mechanical structures and various cultural and creative works.
The future of laser cutting
With the development and progress of the times,Femtosecond Laser Cutting and laser cutting technology is also constantly evolving.
The emergence of fiber lasers has greatly increased the power of laser cutting machines, and the cutting thickness and speed have been significantly improved. In addition, the development of multi-axis laser cutting technology makes laser cutting no longer limited to a plane, but can dance freely in three-dimensional space, bringing more possibilities to design and manufacturing.
In the future, laser cutting technology will continue to be deeply integrated with cutting-edge technologies such as artificial intelligence and big data, and the level of intelligence and automation will be further improved. We can foresee that laser cutting technology will go further and further on the road of precision manufacturing, carving a more refined and brighter chapter for our industrial civilization.Be-Cu provides the highest standard of laser cutting service for all your needs. Contact us today to know more about what we offer!
