轴流式透平叶片的四轴联动数控加工方法

Four-axis NC Machining Method of Axial Flow Turbine Blade

介绍了轴流式透平用叶片类零件的四轴联动数控加工工艺工程,粗加工及精加工叶形时的编程方法,包括叶形曲面的三维计算机造型,叶形部分粗加工去量大时的装夹方法、分面铣削方法及数控编程、刀具选用和加工参数选择;四轴联动精加工装夹方法、编程方法等。指出编程中应注意的事项。探讨了此类零件的小批量低成本制造的有效途径。

This paper introduces the four-axis NC machining process engineering for the axial flow turbine blade parts,programming method of rough machining and finish machining,including 3D computer modelling of leaf surface,clamping method when rough machining,surface milling method and NC programming,tool selection and processing parameter selection,four-axis machining clamping method,programming methods and so on.And it has pointed out matters should be paid attention in programming,and explored effective ways to this kind of parts with small batch and low-cost manufacturing.