目前中小工厂应用可转位端铣刀尚不普遍,其原因除习惯势力外,主要还有内在的技术因素:首先是刀片需经精密磨削,费用增加;加上用户不便重磨,又使使用费用加重。二是管理水平低,刀片常因过渡磨损而崩刃,损及刀垫造成刀体早期报废。三是限于工艺系统刚性差,每齿走刀量一般仅为0.02～0.05毫米,而刀齿的径跳允差就达0.04毫米,这就势必造成切削不均匀,增加功率损耗。因此,我国许多中小工厂仍普遍使用机夹焊接铣刀或单齿焊接飞刀。为改变这种落后的现象,我们设计制造了通用型阶梯式可转位端铣刀,适于在普通立铣上使用。这种阶梯式可转位端铣刀的结构特点主要是:采用单组阶梯切削图形,各刀齿具有较大的径向错移, At present, the application of indexable end mills in small and medium-sized factories is not yet widespread. The reason for this is that besides the habitual forces, there are mainly internal technical factors: firstly, the blades need to be precision-ground, resulting in increased costs; Increased use of the cost. Second, the management level is low, the blade often due to the transitional wear and tear, damage to the knife body caused early scrapping. Third, the process is limited to poor rigidity of the system, each tooth is generally only take the amount of 0.02 to 0.05 mm, while the cutter tooth tolerance of 0.04 mm, which will inevitably lead to uneven cutting, increasing power loss. Therefore, many small and medium-sized factories in our country still use machine-welded cutter or single-tooth welding flyer. To change this backward phenomenon, we designed and manufactured a universal step indexable end mill suitable for use on normal end mills. The structural characteristics of this stepladder indexable end mill mainly include: the use of a single set of ladder cutting graphics, each tooth has a larger radial misalignment,