激光表面淬火和合金化是热处理领域里的一项新成就。国外以美国研究较多,并开始在生产中使用;苏联等国也进行了这方面的研究工作。分析其工艺特点,在机床导轨、丝杠(特别是滚珠丝杠)、主轴、齿轮等关键零件上以及对其它工业部门会有广阔的应用前景。本文将概略地介绍激光热处理 Laser surface hardening and alloying is a new achievement in the field of heat treatment. Foreign countries to study more in the United States, and began to use in production; the Soviet Union and other countries also conducted research in this area. Analysis of the characteristics of its process, in machine tool rails, lead screw (especially ball screw), spindle, gear and other key parts and other industrial sectors will have broad application prospects. This article will outline the laser heat treatment