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涂层硬质合金是近十几年来发展起来的一种新型刀具材料。自1969年TiC涂层硬质合金刀片投入国际市场以来,到1979年12月,已有19个国家的65家工厂共生产238个牌号的涂层刀片。第二代、第三代涂层刀片相继出现,涂层工艺已成为国外刀具制造业中重点发展的工艺之一。目前涂层硬质合金刀具已在可转位刀片总量中占相当比重,如瑞典约占50~60%,西德60~70%,美国35~40%,日本占10~15%左右。
Coated cemented carbide is a new tool material developed in recent ten years. Since 1969 TiC coated carbide inserts into the international market, as of December 1979, 65 factories in 19 countries have produced a total of 238 brands of coated blades. Second-generation and third-generation coated blades have emerged one after another, and the coating technology has become one of the key technologies developed in foreign tool manufacturing industry. Currently coated carbide cutting tools in the total amount of indexable inserts account for a considerable proportion, such as Sweden, accounting for about 50 to 60%, 60 to 70% in West Germany, the United States 35 to 40%, Japan accounted for about 10 to 15%.