Analysis of laser hardening principle of metal laser cutting machine

by:Caodahai     2021-09-18
Laser hardening of metal laser cutting machine is a relatively important technology, so do you understand the principle of laser hardening of metal laser cutting machine? This issue is currently a common concern for everyone. Let's take a look together below. Compared with the conventional hardening process, the development history of laser surface hardening of    metal laser cutting machine is very short. However, from the results obtained, the laser hardening process is a new surface hardening process with many characteristics. Light hardening is laser quenching, which uses a high-energy laser beam to quickly scan the surface of the cylinder bore, quickly absorbing energy in a small area with a very thin layer on the surface, and the temperature rises sharply. Due to the excellent heat transfer and thermal conductivity of the metal base, the surface heat is quickly transferred to other parts of the cylinder base, thereby completing the self-cooling quenching in a very short moment, realizing the phase change hardening of the cylinder bore surface. Its characteristics are as follows:    1. High-speed heating and high-speed self-cooling on the surface of the material.  2. The surface hardness of the workpiece after laser hardening treatment is high, which is 5% to 20% higher than that of conventional quenching, and a very fine hardened layer structure can be obtained.  3. Because the laser heating speed is fast, the heat-affected zone is small, and the quenching stress and deformation are small.  4. Partial hardening treatment can be performed on parts with complex shapes and parts that cannot be processed by other conventional methods. At the same time, different laser hardening treatments can be performed on different parts of the same part as required.   5. The laser hardening process cycle is short, the production efficiency is high, the process is easy to realize computer control, and the degree of automation is high, and it can be incorporated into the production line.  6. u200bu200bLaser hardening is self-cooling by heat conduction from the surface to the inside, no cooling medium is needed, and no pollution to the environment.   Wuhan Gaoneng Laser Equipment Manufacturing Co., Ltd. is a high-tech enterprise integrating Ru0026D, production and sales of professional laser complete sets of equipment. Not only successfully developed laser equipment with advanced technology, but also used self-support import and export rights to promote products to more than 40 global markets including Hong Kong, South Korea, Vietnam, Malaysia, Thailand, Australia, the United States, Japan, Germany, the Netherlands, Jordan, etc. nation.
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