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把微分几何中曲线与曲面之间的“切触”概念应用于高速机车流线型复杂曲面的数控加工 ,提出用圆柱铣刀或圆锥盘铣刀的外圆在五坐标联动中加工三维自由曲面的最佳切触条件
The concept of “touch-in” between curves and surfaces in differential geometry is applied to NC machining of streamlined curved surfaces in high-speed locomotives. It is proposed that the outer circle of a cylindrical cutter or a conical cutter should be the most suitable for machining three-dimensional freeform surfaces Best touch conditions