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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.

Laser welding is one of the important aspects of the application of laser processing technology. Laser welding is a process that uses the radiant energy of the laser to achieve effective welding. The working principle of laser welding is: To excite the laser active medium (such as a mixture of CO2 and other gases, YAG yttrium aluminum garnet crystals, etc.) in a specific way, so that it oscillates back and forth in the resonator, thereby forming an excited radiation beam. When the beam comes into contact with the workpiece, its energy is absorbed by the workpiece, and welding can be carried out when the temperature reaches the melting point of the material.

Power density is a key parameter in laser processing.Higher power density can quickly heat the surface layer to its boiling point in a few microseconds, resulting in significant evaporation.Therefore, high power density is conducive to material removal processes, such as cutting, engraving, and drilling.

In fact, laser cleaning is no different from washing your hands and face. As long as you figure out what the pollutants are and what the base material is, you can remove the pollutants without damaging the base material. This is laser cleaning. The purpose of washing your hands is to remove stains from your hands without damaging your hands. Laser cleaning is essentially based on different lasers that work on different substances to remove pollutants without damaging your hands.

Laser rust removal machine, in simple terms, is a kind of equipment that uses a high-energy laser beam to interact with the surface of an object to remove surface contaminants, coatings, rust and other impurities. It breaks the limitations of traditional cleaning methods and has brought huge changes to the cleaning industry with a brand new, efficient and environmentally friendly concept. Today, let us first study the mechanism of the interaction between laser light and matter.

In the wave of transformation and upgrading of modern manufacturing, laser technology, as one of the core supporting technologies, is driving the transformation of the global processing industry. The core competitiveness of laser processing technology stems from the continuous iteration of lasers.

Today, we continue the discussion on the industrial chain and market size of China's laser processing equipment manufacturing industry in the previous issue, and take a look at the current status of the industry development. Current status of the development of the laser processing equipment manufacturing industry: In recent years, influenced by factors such as macroeconomic development, manufacturing industry upgrading, and national policy support, my country has become the world's largest industrial laser market to date. At the same time, with the proposal of "Made in China 2025", the continued growth of China's economy and the development of China's manufacturing industry have a strong driving effect on the market demand of the laser processing equipment industry, and have created favorable conditions for technological innovation in the laser processing equipment industry. In recent years, the localization rate of the industry has increased, the downstream fields of the industry have developed rapidly, especially the significant growth in sheet metal cutting demand, and the vigorous development of the microelectronics manufacturing industry have driven the rapid growth of the market size of my country's laser processing equipment industry. Data shows that the market size of China's laser processing equipment industry in 2024 will be about 89.9 billion yuan. From the perspective of market structure, laser cutting equipment is the largest sub-segment of laser processing equipment in my country, with a market share of about 39.27%, followed by laser welding equipment and laser engraving equipment, with market shares of 15.93% and 11.77% respectively.

Overview of laser processing equipment manufacturing industry: Laser processing is an industrial application of laser technology. It focuses a certain power of laser on the object to be processed, so that the laser interacts with the object, heats, melts or vaporizes the processed material to achieve the processing purpose. Laser processing is a typical non-contact processing. Compared with other processing methods, it has significant advantages such as fewer subsequent processes, good controllability, easy integration, high processing efficiency, low material loss, low environmental pollution, high flexibility and high quality. Laser processing equipment is a high-tech product that integrates a variety of high-tech technologies. It exists in almost all industrial sectors and reflects a country's production and processing capabilities, equipment level and competitiveness. Therefore, the laser processing equipment manufacturing industry is one of the industries that various countries pay the most attention to and develop the fastest. According to the nature of the laser, laser processing equipment can be divided into gas lasers, solid lasers, semiconductor lasers, liquid lasers, chemical lasers, free electron lasers, etc.; according to different functions, it can be divided into laser welding machines, laser engraving machines, laser cutting machines, laser marking machines, etc. Laser processing equipment manufacturing industry policy: In recent years, China's laser processing equipment manufacturing industry has received high attention from governments at all levels and key support from national industrial policies. The country has successively introduced a number of policies to encourage the development and innovation of the laser processing equipment industry. For example, in June 2023, the Ministry of Industry and Information Technology and other five departments issued the "Implementation Opinions on Improving the Reliability of the Manufacturing Industry", proposing to focus on improving the reliability of industrial mother machines such as vertical/horizontal machining centers, five-axis linkage machining centers, turning and milling composite machining centers, heavy CNC machine tools, large die-casting machines, hydraulic/servo presses, laser welding and cutting equipment, vacuum heat treatment furnaces, additive manufacturing, large high-end intelligent agricultural machinery, small and suitable agricultural machinery in hilly and mountainous areas, and other agricultural machinery equipment, industrial robots and other products. In January 2024, the Ministry of Industry and Information Technology and other seven departments issued the "Implementation Opinions on Promoting the Innovation and Development of Future Industries", proposing to develop intelligent manufacturing, biomanufacturing, nanomanufacturing, laser manufacturing, and circular manufacturing, break through key core technologies such as intelligent control, intelligent sensing, and simulation, promote flexible manufacturing, shared manufacturing and other models, and promote the development of industrial Internet and industrial metaverse. Time Department Policy Name Related Content: May 2022 MIIT and other 11 departments "Notice on Carrying out the "Hand in Hand Action" to Promote the Integration and Innovation of Large, Medium and Small Enterprises (2022-2025)" Driven by digitalization, promote collaborative innovation and technological transformation of large, medium and small enterprises, and enhance the technological transformation capabilities of small and medium-sized enterprises. June 2022 MIIT and other six departments "Industrial Energy Efficiency Improvement Action Plan" Promote energy-saving and efficiency-enhancing transformation in key industries, and develop green manufacturing processes such as laser heat treatment and laser cleaning. January 2023 Xinxiang Municipal People's Government "Xinxiang's 14th Five-Year Plan for Science and Technology Innovation and First-Class Innovation Ecosystem Construction Plan" Carry out the construction of industrial chains such as laser processing islands, intelligent manufacturing, laser processing and 3D printing equipment, and support the innovative development of the intelligent equipment industry. June 2023 MIIT and other five departments "Implementation Opinions on Improving Reliability in Manufacturing" Improve product reliability and promote the improvement of key reliability technologies such as laser welding, laser heat treatment, and composite laser additive manufacturing. January 2024 Henan Provincial People's Government "Henan Province Major Technical Equipment Research Plan (2023-2025)" Breakthrough the core technologies of high-end equipment such as laser cutting machine tools and laser radars, and promote the independent control of high-end equipment. January 2024 Ministry of Industry and Information Technology and other seven departments "Implementation Opinions on Promoting the Innovation and Development of Future Industries" Focus on future industries such as laser manufacturing and bionic manufacturing, promote the integrated development of intelligent manufacturing and future industries, and build a high-end equipment industry ecosystem. 4366-202507090925571348.png ​DateDepartmentPolicy NameRelated Content May 2022MIIT and 10 other departmentsNotice on Carrying Out the 'Joint Action' to Promote Collaborative Innovation Among Large, Medium, and Small Enterprises (2022–2025)Driven by digitalization, promote collaborative innovation and technological transformation among enterprises of all sizes, and improve the technological transformation capabilities of SMEs. June 2022MIIT and 5 other departmentsIndustrial Energy Efficiency Improvement Action PlanPromote energy-saving and efficiency-enhancing transformations in key industries, and develop green manufacturing processes such as laser heat treatment and laser cleaning. January 2023Xinxiang Municipal GovernmentXinxiang City's 14th Five-Year Plan for Scientific and Technological Innovation and First-Class Innovation Ecosystem ConstructionDevelop industrial chains including laser processing islands, intelligent manufacturing, laser processing and 3D printing equipment, and support the innovation and development of the intelligent equipment industry. June 2023MIIT and 4 other departmentsImplementation Opinions on Improving Manufacturing ReliabilityImprove product reliability and promote key reliability technologies such as laser welding, laser heat treatment, and composite laser additive manufacturing. January 2024Henan Provincial GovernmentHenan Province Major Technical Equipment Tackling Plan (2023–2025)Break through core technologies of high-end equipment such as laser cutting machines and LiDAR, and promote independent controllability of high-end equipment. January 2024MIIT and 6 other departmentsImplementation Opinions on Promoting the Innovation and Development of Future IndustriesFocus on future industries such as laser manufacturing and bionic manufacturing, promote the integration of intelligent manufacturing with future industries, and build a high-end equipment industry ecosystem.

Although there are no so-called technical secrets in the welding process, there are many welding techniques, methods and processes in the actual welding process that can make the welding process easier. These processes are called technical know-how. Welding technical know-how can save time, cost and labor, and can even determine the success or failure, profit or loss of welding. Most welding processes are mainly based on scientific research, and some welding processes are based on actual welding experience. This article introduces the synthesis of welding experience in practice.