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随着我国生产、科研的迅速发展,采用新材料越来越多,如高强度合金钢、不诱钢、高温合金等。这些材料一般都难以加工,因此对刀具材料提出了更高的要求。冶金部门有关院校和各钢厂,为了满足这种要求,遵照毛主席关于独立自主、自力更生的教导,结合我国的资源情况,进行了新高速钢的研制工作,取得了可喜成绩。已研制出来的超硬型高速钢有大连钢厂的W12Cr4V3Mo3Co5Si,重庆钢厂的W6Mo5Cr4V2Ae(M2Ae或501钢),本溪钢厂的B201、B212,
With the rapid development of China’s production and scientific research, more and more new materials are used, such as high-strength alloy steel, stainless steel and high-temperature alloy. These materials are generally difficult to process, so the cutting tool material put forward higher requirements. In order to meet these demands, the relevant institutions of the metallurgy department and the steel mills have made gratifying achievements in complying with Chairman Mao’s teachings on independence and self-reliance and in light of the resources of our country. Has developed super-hard high-speed steel Dalian Steel W12Cr4V3Mo3Co5Si, Chongqing Steel W6Mo5Cr4V2Ae (M2Ae or 501 steel), Benxi Steel B201, B212,