激光热处理是在七十年氏出现了大功率激光器以后才开始研究的新技术。由于激光热处理可以获得其它热处理技术所不能达到的效果,因而对它的研究应用日益广泛和深入。激光热处理就是以激光作为热源的热处理。将激光束扫射至零件表面上,其红外能量被零件表面吸收而迅速形成极高的温度,可使金属产生相变甚至熔化。随着激光束离开零件表面,其表 Laser heat treatment is a new technology that began research after the emergence of high-power lasers in the 1970s. Because laser heat treatment can get other heat treatment technology can not achieve the effect, so its research and application is more extensive and in-depth. Laser heat treatment is laser heat treatment as a heat source. The laser beam is swept to the surface of the part, the infrared energy is absorbed by the surface of the part to quickly form a very high temperature, can make the metal phase change or even melt. As the laser beam leaves the part surface, its surface