In industries such as manufacturing, energy, military, machinery, and remanufacturing, production environments are often harsh, and components are subjected to high loads, leading to the corrosion and wear of critical metal parts. To extend the lifespan of expensive production equipment, it is essential to pre-treat or repair the metal components. Laserbekleding, as a surface modification technology for repairing metal parts, has emerged as an ideal solution.

What is Laser Cladding Technology?

Laserbekleding refers to the process of placing selected coating materials on the surface of a base material using different feeding methods. The materials are melted simultaneously with the thin layer of the base surface by laser irradiation, rapidly solidifying to form a low-dilution and metallurgically bonded surface coating. This significantly improves the base material’s wear resistance, corrosion resistance, heat resistance, oxidation resistance, and electrical properties. In simpler terms, laserbekleding is akin to “cosmetic surgery” for damaged components, rejuvenating them to appear like new.

To describe our cladding technology in three words, it would be: “Long lifespan, high precision, low cost.”

The Advantages of Laser Cladding

Compared to other laser processing technologies, laserbekleding offers unparalleled versatility, extendability, and adaptability. This technology not only meets the specific surface performance requirements of materials but also conserves valuable elements, making it highly popular in the market. Over decades of development, laserbekleding has been widely applied, particularly in industries such as aerospace, oil and gas, shipbuilding, construction machinery, and nuclear power.

Extensive Applications of Laser Cladding

1. Aerospace Industry

One of the most significant achievements of laser cladding technology has been the large-scale aluminum alloy cladding for aerospace applications. The remanufacturing of turbine engine blades represents a massive market. Blade materials are diverse and complex, and after repair, there is a substantial amount of work needed in terms of repair materials, flaw detection, and lifespan evaluation. This helps avoid the high cost of importing new parts from overseas for future repairs.

2. Oil Exploration Industry

In the petrochemical industry, equipment often operates in harsh environments, leading to severe corrosion and wear of parts. Large and expensive components, such as drill collars, non-magnetic drill collars, stabilizers, and shock tools, may become completely unusable. Through laserbekleding, these parts can be restored to their original performance, and their service life is significantly extended.

3. Coal Mining Industry

In the coal mining sector, machinery components are subjected to extreme working conditions. Hydraulic columns often fail due to scratches and the peeling of coatings, which greatly affects performance and lifespan. Traditional electroplating processes are high in pollution, and laserbekleding using stainless steel layers for anti-corrosion surface treatment is a high-tech, environmentally friendly solution. Laserbekleding not only enhances the corrosion resistance of these parts but also extends their service life. This technology is supported by the government as an environmentally friendly, recycling-based, high-tech alternative to electroplating.

4. Power Industry

In power plants, turbine rotors suffer from wear on the shaft neck under high operational speeds. Additionally, turbine blades, particularly the last and second-to-last stages, often experience cavitation under prolonged high-temperature conditions. Since turbines are large and difficult to transport, laser in-situ repair technology is needed for highly reliable repairs. With the rapid development of nuclear power in China, there is a growing demand for local production of core nuclear reactor components that can withstand high temperatures, corrosion, and oxidation. This is an area where laserbekleding technology has significant potential.

Challenges Facing Laser Cladding Technology

Currently, in China, the laserbekleding industry faces challenges. While universities and laboratories continue to experiment with new processes, there is a lack of platforms to achieve true application validation. The slow process updates in factories and companies, coupled with the lack of cutting-edge research support, severely restrict the development of the laserbekleding industrie.

Cost is a major factor limiting the widespread adoption of laserbekleding. The expenses related to equipment, research and development, labor, and powder materials all contribute to the high cost of laserbekleding products. The high cost of laser processing equipment and powder materials, coupled with low production efficiency, makes it difficult for smaller manufacturers to afford the necessary investments. However, for mass production, purchasing powder in bulk and using it efficiently can reduce the overall cost. Laserbekleding products’ relatively high prices, along with doubts over product performance, hinder the acceptance of laserbekleding in many applications, including replacing traditional electroplating for parts like columns.

Future Prospects of Laser Cladding Technology

Laserbekleding technology is a high-tech surface modification and equipment maintenance technology. It combines materials preparation and surface shaping, serving as a critical supporting technology for green remanufacturing. It aligns with the national sustainable development strategy and holds significant theoretical and economic value.

Several companies in China, such as Zhongke Zhongmei Laser, Bisheng Laser, Huirui Laser, Zhongke Yuchen Laser, and others, have developed laserbekleding technologies and achieved some results in the research phase. The technology is in the early stages of moving towards industrial applications. With continued research, the application scope of laser remanufacturing technology will expand. China has tens of trillions of yuan in equipment assets, and the loss from downtime or scrapping due to wear and corrosion costs billions annually. This presents a vast market for laser remanufacturing technologie.

Additionally, laserbekleding is also applicable in industries such as steel metallurgy, automotive, construction machinery, mold manufacturing, and shipbuilding. With the continued advancement of China’s Gemaakt in China 2025 development plan, laserbekleding technology is expected to become widely accepted by industrial users, producing enormous economic benefits.

Conclusie

Laserbekleding technology is an advanced surface modification and repair technique that plays a pivotal role in modern high-tech manufacturing and remanufacturing. The research and development in this field hold both theoretical and practical significance. As laserbekleding technology continues to mature and evolve, it is set to become a mainstream solution across various industries, offering sustainable, cost-effective, and high-performance benefits to manufacturers.