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硬质合金至今仍然是切削刀具的主要材料。随着工业生产的发展,硬质合金的产量不断增加。以美国为例,1960年烧结硬质合金产量为1000吨,1970年激增到4000吨;进入七十年代以来,除了经济衰退年份(如1971、1975、1976年),硬质合金产量稳定增长,1981年美国硬质合金产量达到7000吨左右。发展中国家的硬质合金生产的相对增长速度要高得多,然而绝对产量仍很低,如印度目前的硬质合金年产量仅为350吨。从美国的硬质合金使用情况来看,切削刀具所用的硬质合金占硬质合金全部用量的比例有下降的趋势,如1978～1979年占45%,1982～1983年则占40%,而且预计这种趋势将继续下去。这主要是由于切削技术的进步,即使切
Cemented carbide is still the main material for cutting tools. With the development of industrial production, cemented carbide production continues to increase. In the United States, for example, the output of sintered cemented carbide in 1960 was 1,000 tons in 1960 and soared to 4,000 tons in 1970. Since the 1970s, with the exception of the recession years (such as 1971, 1975 and 1976), the output of cemented carbide has been steadily increasing, In 1981 the United States carbide output reached 7,000 tons. The relative growth of cemented carbide production in developing countries is much higher, but the absolute yield is still very low. For example, the current annual output of cemented carbide in India is only 350 tons. From the use of cemented carbide in the United States, the proportion of cemented carbide used in cutting tools to the total amount of cemented carbide tends to decrease, from 45% in 1978 to 1979 and from 40% in 1982 to 1983, and It is expected that this trend will continue. This is mainly due to advances in cutting technology, even if cut