What are the characteristics of laser cladding? A hydraulic support laser cladding manufacturer will explain.

　　 Laser cladding of hydraulic support columns Manufacturers consider laser cladding a surface strengthening method. Through different filling methods, the coating material is pre-placed or simultaneously fed into the surface of the cladding substrate. Then, high-energy laser irradiation melts a thin layer on the substrate surface. After rapid solidification, a cladding layer with low dilution rate and metallurgical bonding with the substrate is formed, thereby improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance, and electrical properties of the substrate surface. The principle of laser cladding is shown in Figure 1-48. Laser cladding can achieve surface modification or repair, meeting the requirements of specific material surface properties while saving a large amount of precious elements. Laser cladding involves many fields, such as physics, metallurgy, and materials science, and has received widespread attention both domestically and internationally.

　　 Hydraulic support column laser cladding manufacturers consider laser cladding a directed energy deposition technology. It is also known as laser cladding; when used for additive manufacturing, it is called laser metal deposition (LMD) or directed laser metal deposition (DLMD). These are many names, but they essentially have the same technical principle: laser melting of metal alloy layers and bonding them to a substrate component or previously deposited layers. The laser cladding layer is completely dense, using metallurgical bonding, with extremely low dilution of the underlying metal material. The added material is applied precisely and selectively. Therefore, laser cladding is a high-quality cladding technology.

　　 Laser cladding of hydraulic support columns Manufacturers believe that laser cladding improves the performance of industrial products by generating a protective layer to prevent wear and corrosion. It helps save natural resources because engineers can choose to design parts using common base metal alloys. Then, high-alloy materials are locally laser-cladded onto the components to produce the desired performance characteristics. Laser cladding is also a technology for restoring and remanufacturing high-value parts to their original geometric shape. In addition to simply repairing the shape of parts, the service life and performance can be improved by selecting additive materials with better wear resistance than the original parts.

　　Hydraulic support column laser cladding manufacturers believe that the main characteristics of laser cladding are high precision and low thermal effects. Therefore, there is little or no impact on the geometric characteristics of parts near the laser cladding. Compared with other cladding technologies, the amount of secondary finishing work is less. The target properties of the coating are usually achieved with only one layer, while the higher dilution of other processes requires two or more layers.

　　 Laser cladding of hydraulic support columns Manufacturers believe that hot laser cladding introduces preheated metal wire in the process. Therefore, more laser energy can be used to melt the substrate at an increased feed rate. High-speed laser cladding (EHLA) completely melts the additive powder in the laser beam before the laser beam reaches the substrate. The molten powder is fused with the solid substrate through heat conduction. 'Large spot' laser cladding is a process that increases the size of the laser spot on the workpiece to allow the use of more laser power without excessively melting the substrate and increasing dilution. A coaxial laser beam is used for laser cladding, and the additive material (usually a metal wire) is fed perpendicular to the workpiece. The laser is projected coaxially around the wire. By this method, consistent processing conditions can exist independently of the direction of travel.