铣削啮合几何参数提取方法的研究

The comparison and research on the extraction methods of milling engagement parameters

铣削啮合几何参数是铣削仿真中反映切削力、变形、振动等物理性质的物理模型的组成部分或边界条件,它们尺度微小、难于提取,制约了物理模型在实际生产中的应用。针对啮合参数提取需要满足的要求,系统的分析了不同类型的啮合参数提取途径的特点,提出铣削仿真过程中工件形状不断变化的情况下准确提取铣削啮合几何参数的研究途径,以满足物理建模研究应用于生产实际的需要。

Cutting engagement parameters are compositive parts or boundary conditions of physical models in milling simulation. Due to the tiny scale, they are very hard to be obtained, which hindered the physical applications in practical production. The requirements that the extraction method of engagement parameters must satisfy were induced, the characteristic of different methods to obtain the engagement parameters was systematically analyzed, and the research approaches to extract the engagement parameters exactly while the shape of workpiece keep changing during the course of milling simulation were presented.