The plates with a thickness of more than 10mm can be used to apply the special plate to the laser and oil can be applied to the surface of the workpiece in the process in order to get better cutting quality. For brittle materials prone to heat damage, high speed and controllable cutting through laser beam heating are called controlled fracturing cutting. in the process of oxidation melting and cutting with two heat sources, if the combustion rate of oxygen is higher than that of the laser beam, the slit appears wide and coarse. the surface of the material is heated to the point of ignition rapidly under the irradiation of the laser beam, and with the intense combustion reaction with oxygen, a large amount of heat is released.
Laser Ablation is the removal of material from the surface of a part. Large-area ablation examples include paint removal and surface cleaning. Smaller feature laser ablation is used in film patterning, blind-hole and shaped feature drilling as well as localized conformal coating removal. Laser marking is the most versatile marking solution as it allows the material surface to be marked or engraved without surface contact or the need for inks or dyes. We combine state-of-the-art lasers with advanced engineering and application innovation to create laser marking solutions that move your business forward. And, our expert technical and customer support guarantees a customizable and scalable laser marking system that will meet your needs now and in the future.
With the relative linear movement of the beam and the material, the hole is continuously formed into a narrow slit. The material is quickly heated to the degree of vaporization, and the pore is formed by evaporation. It is also not easy to achieve success by cutting a very large and closed shape. It is important to note that this controlled fracturing cutting is not suitable for cutting acute angle and arm of angle. With the moving of the workpiece, the hole is synchronized horizontally to form a slit in the direction of cutting. In the vaporization process, about 40% of the material is dissolved into steam, while 60% of the material is expelled by the flow in the form of a droplet.
The cutting edge is affected very small by the heat, and there is no deformation of the workpiece. At this point, the heat input of the beam is far more than the part of the material reflected, transmitted or diffused. When the cut product is the final product, there is no subsequent process, and it is necessary to use a protective gas, such as a craft product. The key considerations are the cost of cutting and the requirements for the product. If you want to cut stainless steel of 12mm, or thicker to 25mm, the pressure is required to be 2Mpa or higher.
Laser fusion cutting is mainly used for the cutting of non-oxidizable materials or active metals, such as stainless steel, titanium, aluminum and alloys. Therefore, in the process of cutting materials, it is necessary to select the auxiliary gas according to the characteristics of the product. The laser processing of different materials requires the use of matching auxiliary gases. The auxiliary gases commonly used in laser cutting are nitrogen, oxygen and air. Under certain plate thickness and cutting speed, there is an optimal range of laser power. During the cutting process, due to the uneven surface of the material, the focal position of the laser will change, thus affecting the cutting quality.
However, the maximum power level can never exceed the average power. Any explicit consent from you to process your personal data can be revoked at any time by unchecking the following checkbox. Please note that up until revocation, the legal validity of consent-based processing remains unaffected. Laser drilling is a non-contact process, so equipment does not experience mechanical wear common with traditional methods.
The laser beam focuses on a small point of light, which makes the focal point reach a high power density. combustion material is transferred into slag to control the combustion rate of oxygen and metal, and the speed of oxygen diffusion through the slag to the ignition front has a great impact on the combustion speed. The higher the oxygen flow rate, the faster the combustion chemical reaction and the removal of slag. The principle of laser oxygen cutting is similar to that of oxyacetylene cutting.
We serve a variety of manufacturing industries with direct part marking solutions. A new area of application in recent years is the oil screen seam pipe. Copper and brass are cut only when there is a “reflective absorption” device installed on the system, otherwise, the reflection will destroy the optical components. On the other hand, the molten oxide and the melt are blown out of the reaction area, forming an incision in the metal. Air can be supplied directly from the air compressor, so it is very cheap compared to other gases.
The photoelectric conversion efficiency of the fiber laser is about 30%, the photoelectric conversion efficiency of the CO2 laser is 6~10%, and the photoelectric conversion efficiency of YAG laser is only 3%. Read this post to quickly gain a general view of its principles and types. This video displays the welding process of MORN LASER 2000W Auto laser Welding Machine.
Most laser cutting machines are controlled by CNC programs or made into cutting robots. Due to the laser transmission characteristics, the laser cutting machine is usually equipped with multiple CNC workstations, and the whole cutting process can be achieved in all CNC. In operation, the cutting of different shape parts can be applied only by changing the NC program, which can be cut in 2D as well as 3D. First of all, the other methods of thermal cutting cannot cut on a very small area like the laser beam, as a result, it has a wider incision and large heat affected zone and obvious deformation.
Under this heat, the material is formed by a small hole filled with steam, surrounded by molten metal walls. Due to oxidation produced a large amount of heat in the process of cutting, so the energy needed of laser oxygen cutting is just 1/2 of molt cutting, and cutting speed is more than laser vaporization cutting and melting cutting. For example, when cutting stainless steel materials, when the requirement for the quality or surface quality of the products is not high , air can be used as the cutting gas, which can reduce the cost. The laser power has a great influence on cutting thickness, cutting speed, cutting width and cutting quality. In the process of laser cutting, the laser focus position has a great influence on the surface quality of the parts after cutting, and different materials have different requirements on the focus position. It is now common for these systems to perform multiple laser operations, including cutting, welding, drilling and marking, using one machine on a single part or family of parts.
Each of these welding processes have multiple practical uses within the manufacturing industry. In the hands of the right professional, the technology can help create customized pieces for various applications. This process is characterized by high efficiency and high welding speeds. This process is used in applications requiring deeper welds or where several layers of material have to be welded simultaneously.