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各大型工具公司在巴黎举行的EMO’90展览会上展出的产品反映了在刀具和工具材料方面取得的巨大成就。Krupp Widia公司展出了Widalon HK35涂层硬质合金,这种合金用来车削高合金钢和不锈钢,涂层由TiN、TiCN和TiN三层构成,在这三层的上面用气相沉积法涂复有四层氧氮化铝,其间有一层薄的TiN。Widalon HK35的使用范围相当于ISO的M25～M40。为了铣削钢和各种铸铁,该公司生产了Widadur TN450涂层硬质合金,以及Widacerm硬质合金系列,其切削速度达500m/min。在展
The products exhibited by the major tool companies at EMO’90 in Paris reflect the tremendous achievements made in cutting tools and tooling materials. Krupp Widia exhibited Widalon HK35 coated cemented carbide, which is used for turning high-alloy steel and stainless steel. The coating consists of three layers of TiN, TiCN and TiN, coated on the three layers by vapor deposition There are four layers of aluminum oxynitride with a thin layer of TiN in between. Widalon HK35 is equivalent to the ISO M25 ~ M40. For milling steel and various cast irons, the company manufactures Widadur TN450 coated cemented carbide and Widacerm cemented carbide ranges at cutting speeds of up to 500 m / min. At the show