To improve the efficiency decreased by feed rate in traditional nc program, a nc program optimization system is developed for rough milling process.

针对传统数控程序中进给速度固定限制加工效率的缺点，开发了面向粗铣加工的数控程序优化系统。

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Then the design check-up, main model establishment, NC machining simulation, program optimization are realized before the trial-manufacture of prototype model.

针对下料问题产生的数学模型过大和生产中的实际情况，笔者编写了杆件下料优化程序进行建模求解。

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