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基于宽行加工理论和广域曲率吻合原则,提出一种利用圆环面内侧作为刀具工作面的反圆环面刀具宽行加工叶片进排气边的新方法.该方法通过优化刀具摆角使具有定母圆半径刀具工作面的包络面充分逼近叶片进排气边曲面,从而使刀具能在给定的精度范围内以最大行宽和最少刀轨行数加工出进排气边.最后,以某型号发动机叶片的进气边为例进行了加工实验.结果表明该方法能够大幅提高进排气边的加工质量,且反圆环面刀的加工行宽比球头刀提高了5倍.
Based on the theory of wide-line machining and the principle of wide-area curvature, a new method of wide-width machining of blade inlet and exhaust edges by using toric cutter whose inner side is used as cutter face is proposed. By optimizing the tool swing angle The envelope surface of the working face with the defined parent radius fully approximates the blade edge surface, so that the tool can be processed into the exhaust edge within the given accuracy range with the maximum line width and the minimum number of tool path rows. , The processing experiment was carried out with the intake side of a certain type of engine blade as an example.The results show that this method can greatly improve the processing quality of the intake and exhaust side and the machining width of the torus cutter is increased by 5 times .