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日本东芝钨合金有限公司开发了一种新型硬质合金牌号KS20,是切削耐热合金和Ti合金的理想刀具材料.该公司同时还研制成功了一种牌号为TAC的刀片,这种牌号的刀片是用KS20制作的.这种新刀具的组成实质上与普通硬质合金刀具相同,不同的是采用超微细金属粉末制作,从而提高了强度和耐热性.另外,神户钢铁公司还开发了一种新高强度合金刀具材料——Toughmet.这种材料具有硬质合金的耐磨性,但又具有高速钢的韧性和可加工性.这种材料采用高压雾化法生产的细合金粉末(粒度小于10μm)制作.采用高压雾化法可使硬质合金粉末(氮化物与碳化物)在
Japan’s Toshiba Tungsten Alloy Co., Ltd. has developed a new type of carbide grade KS20, is the ideal tool material for cutting heat-resistant alloys and Ti alloys. The company also developed a successful brand TAC blade, this grade blade Is made of KS20. The composition of this new tool is essentially the same as that of ordinary cemented carbide tools, except that it is made of ultra-fine metal powder to improve strength and heat resistance. In addition, Kobe Steel also developed a New high-strength alloy tool material - Toughmet. This material has the wear resistance of cemented carbide, but also has the toughness and machinability of high-speed steel. This material is produced using high-pressure atomized fine powder (particle size less than 10μm) produced by high-pressure atomization method can make cemented carbide powder (nitride and carbide) in