In order to solve the problem of machining the blade surface of an integral impeller,the paper carried out the research on the mechanisms of electrochemical contour evolution grinding(ECEG).

• 介绍了以四轴联动方式精密展成电解加工直纹面叶型整体叶轮叶片型面时,叶片型面的拟合方法、展成运动的组成以及展成运动轨迹的计算方法。