Based on the trajectory preprocess arithmetic, a kind of rate-variant square spiral scan strategy is designed according to the analysis results.
首先分析比较了水平行扫、螺旋扫描和分行螺旋扫描策略，并根据分析结果，结合轨迹预处理算法，设计了一种变速分行螺旋扫描策略。
The interpolation arithmetic will effectively improve the efficiency and precision in the special spiral rod machining, and it provide a new method of the special spiral rod machining.
本文提出的插补算法将有效地提高异形螺杆加工的精度和效率，为异形螺杆的加工另辟新径。
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