一、发展概况在可转位硬质合金刀片上涂复一薄层耐腐性强的难熔金属化合物,即为涂层硬寅合金。这是一种新型的刀具材料。自1969年以来,西德、瑞典、美国、日本等国相继研制成功涂层硬质合金刀片,并投入世界市场。目前,这些国家的涂层刀片己在刀具材料中占有重要地 First, the development of In carbide carbide blade index coated with a thin layer of corrosion-resistant refractory metal compounds, namely hard coating alloy coating. This is a new tool material. Since 1969, successfully developed coated cemented carbide inserts have been put into the world market by West Germany, Sweden, the United States and Japan. At present, coated blades in these countries have taken an important part in the tool material