It can weld special materials such as high melting point metals, non-metals, composite materials, and can also realize the welding of dissimilar materials and special structure welding; the welding seam has a “self-purification” function, and the welding seam quality is high; it can be accurately welded, generally not required Filling metal; through the light guide system, the laser pointer beam and multiple devices form a flexible processing system, which has a high degree of automation and high production efficiency; in high-energy beam welding, the biggest feature of laser welding is that it does not require a vacuum chamber and does not produce x-rays .
Laser surface strengthening is divided into two types: laser phase change hardening and laser melting hardening. Laser phase change hardening is also called laser quenching. It uses a high-energy laser beam to quickly scan the workpiece, so that the surface temperature of the irradiated metal or alloy rises extremely quickly to above the same point. When the laser beam leaves the irradiated part, Due to the effect of heat conduction, the cold matrix quickly cools it and performs self-cooling quenching to obtain a finer hardened layer structure. The hardness is generally higher than that of conventional quenching; the laser melting and hardening process is similar to the foregoing process, except that the laser makes The heating temperature of the material surface is higher, and finally a layer of finely structured flame hardened layer is formed on the surface of the part.
Laser cladding is to irradiate the deposited material with a high-energy laser beam to quickly fuse it together with the thin layer of the substrate surface to form an alloy coating with completely different compositions and properties that is metallurgically combined with the substrate. Optical rapid prototyping technology The principle of optical rapid prototyping technology is to use a Laser Engraver beam to solidify the molding material layer by layer according to the CAD design model and data of the part under the control of the computer. The surface (layer) of the part is constructed by points and lines. The process of accurately stacking into three-dimensional solid models or parts.
Using optical rapid prototyping technology can significantly shorten the product development cycle, greatly reduce the development cost, can quickly produce products that adapt to market changes, and maintain and strengthen the competitiveness of products in the market. At the same time, the use of optical rapid prototyping technology is also an effective technical way to realize concurrent engineering and agile manufacturing. Entering the new century, the automobile industry is entering the lean production stage that can perform flexible processing according to user requirements.
A flexible modular production method has emerged in the automobile industry, and the modern automobile industry is also developing in the direction of high technology. Automobile technology is undergoing a transformation from traditional machinery manufacturing technology to advanced manufacturing technology. Optical manufacturing technology has injected vitality into the development and manufacturing of automobiles. It can be expected that the green laser pointer application of light manufacturing technology in the automotive industry will develop rapidly in this century, and it will become an important processing method in the automotive industry.