苏联专家普洛伏罗维奇同志,于今年年初来到我厂,他对我厂各个方面都提出了宝贵的建议。车铸铁用的强力切削车刀就是许多宝贵建议之一;这是一种先进刀具,经实际试验后证明,完全可以达到预期的效果:不仅保证了质量,而且使生产率提高1倍。刀具的几何形状如附图所示。刀具的特点:1)前角较大(γ=12°),因此切屑变形小,切削容易,减小功率的消耗。2)有正的刃倾角(λ=7°), Comrade Plovrovi, a Soviet expert, came to our factory earlier this year and made valuable suggestions on all aspects of our plant. The powerful cutting tool for cast iron is one of many valuable suggestions; it is an advanced tool proven by actual tests to achieve the desired result: not only quality but also productivity doubled. Tool geometry as shown in the figure. Tool features: 1) larger rake angle (γ = 12 °), the chip deformation is small, easy cutting, reducing power consumption. 2) Positive edge inclination (λ = 7 °),