80年代初,市场上越来越多的出售涂层高速钢刀具。本文介绍了用几种不同基体材料的涂层刀具所作的试验。试验结果表明,粉末冶金高速钢的涂层结合强度高于普通高速钢。粉末冶金高速钢涂层刀具与普通涂层高速钢刀具相比,前者寿命较高,且稳定性好。采用该种刀具可增大切削用量,从而提高生产效率。 In the early 1980s, more and more coated high speed steel tools were sold in the market. This article describes the testing of several coated tools with different base materials. The test results show that the bonding strength of powder metallurgy high speed steel is higher than that of common high speed steel. Powder metallurgy high speed steel coated cutting tools and ordinary coated high speed steel cutting tools, the former life expectancy is higher, and good stability. The use of such tools can increase the amount of cutting, thereby enhancing production efficiency.