通过对切屑截面几何、变形状态及切削比的实验分析，研究了非自由切削的变形特征。
The deformation characteristics of non free cutting (NFC) are experimentally studied with the chip cross section geometry, the deformation configuration and the cutting ratio.
在自由特征形状的定义中，建立数值参数和最终特征形状几何属性的映射关系。
Mapping from numerical parameters to geometry is defined in the definition of freeform feature.
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