柱面的3阶切触在5坐标柱面型叶片加工中应用

THE THORD ORDER LOCAL CONTACTE OF THE SCURPTRUED SURFACES IN 4-AXIS MACHINING OF SCUPTRUED URFACES

工程中有很多复杂柱面,如汽轮机叶片中有一类柱面型叶片,采用5坐标加工可高效达到所需形状。运用微分几何中的切触原理,研究了在多轴数控机床中刀具切削圆与零件柱面的切触条件,并用截形对刀具切削圆与柱面型叶片的贴近程度进行了分析。

This paper applied the contact principle of deferential geometry in to the 4-axis NC machining, researched the best contact condition of tool and the surfaces, analysis the contact degree of the intersection line of the cutter and the surfaces