<\/span><\/h2>\nMetal laser cutting is the process of using laser technology to cut and engrave metal materials such as stainless steel, iron, copper, aluminum, etc. This machining process is carried out automatically through pre-programmed software on a computer, controlled by a CNC system.<\/p>\n
>> See more: CNC machining services at 3Dmanufacturer.<\/em><\/p>\nLaser cutting processing is the process of using laser technology to cut or engrave materials<\/figcaption><\/figure>\n<\/span>Advantages of Metal Laser Cutting Technology<\/strong><\/span><\/h2>\nLaser cutting technology has created new growth opportunities for the manufacturing industry due to its outstanding benefits. Specifically, the advantages of using laser cutting technology in metal fabrication include:<\/p>\n
\nHigh precision<\/strong>: Laser cutting produces extremely fine cuts, and the automated process makes it easy to create metal products with precise dimensions and shapes as required, even for the smallest and most complex details.<\/li>\nOptimal machining efficiency<\/strong>: Laser metal cutting is faster than many traditional machining methods. The cutting and machining process is automated and continuous with high-tech machinery, saving time and labor.<\/li>\nAbility to cut various materials<\/strong>: In addition to metals, laser cutting can also be applied to materials like wood, glass, and more.<\/li>\nCleanliness and safety<\/strong>: The laser cutting process produces fewer metal shards and debris compared to many other cutting methods, making cleanup easier and ensuring a cleaner, safer work environment.<\/li>\nNo material deformation<\/strong>: The laser generates highly localized heat-affected zone, preventing the surrounding material from warping or being impacted by high temperatures, ensuring the precision and consistency of the final product.<\/li>\n<\/ul>\nThe heat zone created by the laser cut is extremely small, so it does not deform the material<\/figcaption><\/figure>\n<\/span>Types of Lasers Used in CNC Machining<\/strong><\/span><\/h2>\nCurrently, there are two popular laser cutting technologies on the market: gas lasers (CO\u2082 Laser) and fiber lasers (Laser Fiber). Each technology has its own advantages and applications.<\/p>\n
<\/span>CO\u2082 Laser (Gas Laser)<\/strong><\/span><\/h3>\nA CO\u2082 laser is a type of gas laser created in a CO\u2082 gas environment. During operation, the electrodes are charged to generate an electric discharge within the tube. The gases in the tube emit laser beams when the energy reaches a sufficient level. This laser typically has wavelengths of 9.3 \u03bcm, 10.2 \u03bcm, or 10.6 \u03bcm. This technology allows for cutting, engraving, melting, or burning materials, including metals and non-metals.<\/p>\n
Advantages:<\/strong><\/p>\n\nThe CO\u2082 laser can cut a wide variety of materials, from metals to non-metals such as plastics, wood, glass, paper, etc.<\/li>\n It can cut materials up to 5mm thick with high precision and clean edges.<\/li>\n Suitable for industries such as textiles, advertising, entertainment, and other applications.<\/li>\n<\/ul>\n<\/span>Fiber Laser (Laser Fiber)<\/strong><\/span><\/h3>\nFiber laser combines laser beams with rare earth elements like Neodymium, Erbium, Thulium, etc. When stimulated by light diodes, these elements emit light through optical fibers and direct it to the laser cutter’s head.<\/p>\n
Advantages:<\/strong><\/p>\n\nFiber laser cutting efficiency is twice that of CO\u2082 lasers.<\/li>\n Ideal for cutting ferrous and non-ferrous metals like aluminum, copper, with thicknesses up to 30mm.<\/li>\n The fiber laser beam has a small diameter, allowing for complex cuts with high precision, resulting in finely detailed products.<\/li>\n<\/ul>\n<\/span>Crystal Laser<\/strong><\/span><\/h3>\nThis is another metal cutting technology that uses lasers generated from crystals such as Nd: YAG (Neodymium-doped Yttrium Aluminum Garnet) and Me: YVO (Neodymium-doped Yttrium Orthovanadate). These devices have extremely high power, which makes the equipment investment cost quite high. However, their lifespan is between 8,000 to 15,000 hours, which is about half of the fiber laser’s lifespan. As a result, crystal laser cutting technology is not as widely used as CO\u2082 and fiber lasers.<\/p>\nThe two main types of lasers used in CNC machining are CO\u2082 Laser and Fiber Laser<\/figcaption><\/figure>\n<\/span>The principle of metal laser cutting machining<\/strong><\/span><\/h2>\nThe principle of metal laser cutting machining involves using a high-energy laser beam to create a localized molten material zone, which is then removed from the cutting area by a high-pressure gas stream. Specifically, the metal laser cutting process for metals works as follows:<\/p>\n
\nThe laser generator creates a high-energy laser beam. This beam is focused and directed onto the surface of the workpiece through a lens system.<\/li>\n The laser beam is used to heat the material and create a localized molten zone. This zone typically has a diameter of less than 0.5mm, ensuring that it doesn’t affect the surrounding cut surface.<\/li>\n A high-pressure gas stream is directed along the cut path to push the molten material away from the cutting area.<\/li>\n The CNC laser cutting machine automatically moves the laser beam or metal sheet along a specified path (based on machine settings) to continue creating the cuts according to the design.<\/li>\n<\/ul>\nThrough this process, metal laser cutting machining produces highly accurate products with sharp cuts, high efficiency, and excellent quality.<\/p>\nThe CNC machine will automatically move the laser beam along the cutting path<\/figcaption><\/figure>\n