【摘要】 无Ｃｏ超硬高速钢Ｗ１２Ｍｏ３Ｃｒ４Ｖ３（Ｖ３Ｎ）的主要性能达到相同钒量级别的会Ｃｏ超硬高速钢的水平。Ｖ３Ｎ白钢刀应用于普通钢铁材料及各种难切削材料的车、刨加工，寿命为普通白钢刀的３倍以上，可以解决国内市场高性能白钢刀短缺的问题。更多还原

【Abstract】 The main properties of Co-free superhard high speed steel(HSS) W12Mo3Cr4V3N(i. e.V3N) are identified with those of the HSS containing cobalt at the same vanadium content. Results of industrial applications of turning and planing of common iron and steel materials and various materials which is difficult in cutting showed that the tool lifes of V3N are three times or more higher than those of conventional HSS fool bits such as M2 or W9,and the problem about shortage of high performance HSS tool bits in domestic market can be resolved更多还原