W18Cr4V高速钢刀具经激光强化后耐用度可以显著提高,这对保证加工质量、提高生产率和降低成本都具有重要意义。刀具采用固体脉冲激光器进行局部强化处理是非常适宜的。之所以不采用大功率CO_2连续激光器,是由于这类激光器成本高、寿命低、输出不稳定、占地面积大、使用和维修不方便,尤其是容易使金属过热。高速钢用激光强化,由于激光加热和冷却时 W18Cr4V high-speed steel tool after laser enhanced durability can be significantly improved, which ensure the processing quality, increase productivity and reduce costs are of great significance. It is very suitable for the tool to use local pulse laser for local strengthening. The reason why the high-power CO 2 continuous laser is not used is due to its high cost, low life, unstable output, large area, inconvenient use and maintenance, and especially overheating of the metal. High speed steel with laser strengthening, due to laser heating and cooling