粉末冶金高速钢是近十年来刀具材料的重要发展之一。近几十年来虽然出现了硬质合金、人造金刚石、立方氮化硼和陶瓷等刀具材料,但高速钢仍不失为一种重要的刀具材料。直到目前为止,使用最广泛的刀具仍然是高速钢刀具,它占世界各国刀具的60～70％。高速钢的产量,世界各国每年都在 Powder metallurgy high-speed steel is one of the important development of tool materials in recent ten years. In recent decades, despite the emergence of carbide, artificial diamond, cubic boron nitride and ceramic tool materials, but still an important tool for high-speed steel tool material. Until now, the most widely used tool remained the HSS tool, which accounted for 60 to 70% of the tools in the world. High-speed steel production, all over the world every year