论文部分内容阅读
端铣刀前角(径向和轴向)的大小,从过去十几年国内、国外的产品(表1)来看,基本上在±7°的范围内变化,因而大大影响着硬质合金刀片切削性能的进一步发挥,使生产中端铣刀的生产效率、耐用度得不到有效的提高。为此,近年来国内外一些专家都在研究端铣刀最佳角度对于提高其耐用度、生产效率所能起的作用。生产实践表明:端铣刀最佳几何角度在生产中应用,具有十分显著的效果,耐用度可提高2～8倍,生产效率可提高1～5倍。端铣刀的主偏角K_r=75°是目前公认的常用值,则主前角γ_0和刃倾角λ_(?)与轴向前角γ_p和径向前角γ_(?)具有下列关系式: 从上列式子可以看出:径向前角γ_f,不仅主要影
End mill angle (radial and axial) size, from the past ten years, domestic and foreign products (Table 1) point of view, basically within ± 7 ° range, thus greatly affecting the cemented carbide Further cutting blade performance, so that the production end mill production efficiency, durability can not be effectively improved. To this end, in recent years, some experts at home and abroad are studying the best perspective end mill for improving its durability, productivity can play a role. Production practice shows that: the best geometric angle of the end mill in the application of production, with a very significant effect, durability can be increased by 2 to 8 times, the production efficiency can be increased by 1 to 5 times. The main corner angle K_r = 75 ° of the end mill is the commonly accepted value at present. The relationship between the leading edge angle γ_0 and the cutting edge angle λ_ (?) And the axial rake angle γ_p and the radial rake angle γ_ (?) Has the following relationship: From the above formula can be seen: radial rake angle γ_f, not only the main shadow