采用固体脉冲激光器对W18Cr4V高速钢刀具进行局部强化处理,能提高其刀具耐用度及保证加工质量,还可提高生产效率和降低成本。由于激光加热和冷却时间特别短,因此表面不会产生脱碳,而淬火组织非常细小,同时由于空气中的氮渗入形成氮化物,可使表面显微硬度提高,因此增强了刀具的耐磨性。为保证激光强化层表面质量的均匀性及稳定性,采用 The use of solid pulse laser W18Cr4V high-speed steel cutting tools for local strengthening, can improve the durability of the tool and ensure the processing quality, but also improve production efficiency and reduce costs. Due to the laser heating and cooling time is particularly short, so the surface will not produce decarburization, and quenching the organization is very small, at the same time due to the infiltration of nitrogen in the air to form nitride, microhardness can increase the surface, thus enhancing the tool wear resistance . In order to ensure the uniformity and stability of the laser surface quality, use