To aim at the research on cuttingdirection in NC machining of free-form surfaces, a simplified time model for tool trace is established, and the system of tool path programming is discussed.
针对自由曲面走刀方向数控加工的研究，建立了简化的刀具轨迹时间模型，并对路径规划的系统进行了讨论。
2
The cutting model of circular tool is set up with least energy by theoretic analysis, the flow direction is forecasted, and the feasibility is validated.