激光淬火是齿轮表面硬化的一个新工艺，与渗碳淬火相比，具有变形小等特点，具有广阔的应用前景。针对齿轮激光淬火和渗碳淬火两种不同工艺，从材料、工艺流程、制造成本等方面进行了比较，结果表明：齿轮激光淬火比渗碳淬火更加经济。%Laser hardening is a new method for surface hardening of gear tooth. It characteristics of little deformation after hardening compared with carburized gears, which can be widely used in the industries. According to the two dif-ferent heat treatments of gears, laser hardening and carburizing, the base materials, manufacturing process and produc-tion cost of two different hardened-gears are compared. The research results show that laser-hardened gears are eco-nomical compared to carburized gears.
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