Handheld Laser Welding Machine Revolutionizes Traditional Welding Technology
Laser welding is one of the most important aspects of the application of laser processing technology and is the most popular and promising welding technology. Compared with traditional welding methods, laser welding has many advantages, higher welding quality and faster efficiency. At present, laser welding technology has been widely used in manufacturing, powder metallurgy, automotive industry, electronics industry, biomedical and other fields. 1960, scientists after unremitting research to obtain the wavelength of 0.6943 μm (micron) of the laser, which is the first beam of laser light ever obtained by mankind. Laser welding uses the excellent directionality of the laser beam and high power density and other characteristics of the work, through the optical system will focus the laser beam in a very small area, in a very short period of time so that the welded place to form a highly concentrated energy heat source area, so that the welded material melting and the formation of a solid weld and weld seam. Handheld laser welding machine is a kind of high efficiency, precision welding equipment, can realize fast and accurate welding. Handheld laser welding machine With the continuous progress of science and technology, the manufacturing industry is experiencing unprecedented changes. Handheld laser welding machine as a kind of laser welding equipment, mainly using the energy of the laser beam to melt the surface of the material, so as to realize the welding of the material.
According to the laser classification, it can be divided into the use of pulsed or continuous laser beam to realize.
The difference between pulsed and continuous laser beams can be categorized into heat conduction welding and laser deep fusion welding according to the laser welding principle. When the laser irradiates the surface of the material, part of the laser light is reflected and part of it is absorbed by the material, which converts the light energy into heat energy and heats up and melts, and the heat on the surface of the material continues to be transferred to the deeper layers of the material through heat conduction, and the two weldments are finally welded together. Commonly used in pulsed laser welding machines, aspect ratio <1. Laser heat conduction welding When a high power density laser beam irradiates the surface of the material, the material absorbs light energy and converts it into heat energy, the material is heated and melted until it vaporizes, thus generating a large amount of metal vapor. Under the reaction force generated when the vapor leaves the surface, the molten metal liquid is pushed out to form a crater around it. As the laser continues to irradiate, the pits penetrate deeper and deeper. When the laser stops irradiating, the molten liquid around the crater flows back, cools and solidifies, and the two weldments are welded together. Commonly used in continuous laser welding machines, the aspect ratio is greater than 1. Compared with other welding methods, laser deep fusion welding has the following main characteristics:
concentrated energy, high welding efficiency, high processing precision, and large weld depth to width ratio. Small heat input, small heat-affected zone, small residual stress and deformation of the workpiece. Non-contact welding, fiber optic transmission, better accessibility, high degree of automation. Flexible joint design, saving raw materials. Welding energy can be precisely controlled, welding effect is stable, welding appearance is good. Handheld laser welding machine as a new generation of laser welding equipment, with simple operation, welding speed, weld at the beautiful and other advantages, for industrial enterprises to bring cost reduction and efficiency, promote technological upgrading and innovation, improve product quality and many other benefits, and gradually more and more business users pay attention to, and can completely replace the traditional welding.