大连十七厂于1949年在苏联专家的帮助下,在部份苏式机床上会使用了硬质合金刀,但由于技术人员及工友对机床及硬质合金刀的性能未能很好掌握,因此机器效能仅能发挥百分之四十,同时也影响了刀具及机床寿命。至51年九月,高速切削推广队至厂进行切削表演,当时一般工友盲目的相信硬 With the help of Soviet experts in 1949, Dalian Seventeen Factory used carbide knives on some Soviet-type machine tools. However, because technicians and workers did not master the performance of machine tools and carbide knives, So the machine efficiency can only play 40%, but also affect the life of tools and machine tools. By September of 51, the high-speed cutting promotion team went to the factory for cutting performance. At that time, the average coworkers believed blindly