一、前言导轨是机床的装配基础,也是机床工作精度的基准。合理地选择机床导轨的材料和热处理方法,对提高机床的耐磨性,延长机床精度的保持性和使用寿命有着十分重要的作用。近五年来,国内在高效自动化、数控和高精度机床上采用镶钢导轨已覆见不鲜。 I. Introduction The guide rail is the basis of the assembly of the machine tool, and is also the benchmark for the machine working accuracy. Reasonable choice of machine tool guide rail materials and heat treatment methods to improve the wear resistance of the machine tool to extend the maintenance of machine accuracy and service life has a very important role. In the past five years, the domestic use of inlaid steel guide rails in high-efficiency automation, numerical control and high-precision machine tools has been seen in the air.