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针对回转类复杂曲面加工过程的特点，提出二维自校正控制方法，以实现其缓变和突变特性的综合校正，针对典型活塞中凸变椭圆裙面的车削加工实验，证明本方法可有效提高复杂轮廓加工精度。
Aiming at the characteristics of turning complex surface machining process, a two-dimensional self-tuning control method is proposed to realize the comprehensive correction of its gradual change and abrupt change. According to the turning machining experiment of the convex piston in the typical piston, it is proved that this method can effectively improve Complex contour machining accuracy.