Application of an Internally Consistent Material Model to Determine the Effect of Tool Edge Geometry in Orthogonal Machining
Application of an Internally Consistent Material Model to Determine the Effect of Tool Edge Geometry in Orthogonal Machining
复制标题
应用内部一致材料模型确定正交加工中刀具刃口几何形状的影响
DOI：
10.1115/1.1448334
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
R. Stevenson
中科院分区：
文献类型：
--
作者：
R. J. Schimmel;W. J. Endres;R. Stevenson
众所周知，切削刀具的刃口几何形状影响金属切削中测量的力。过去提出了两种实验方法来从（总）测得的力中提取犁削（非切削）分量; 1）外推法和2）驻留力技术。本研究报告的行为，锌正交加工过程中，使用控制刃半径的工具。经确定，外推法和驻留法均未产生与锌的已知行为一致的材料响应。进一步的分析表明，边缘几何形状修改材料的剪切区，从而修改力。当以这种方式分析时，测得的力数据产生预期的材料响应，而不需要求助于附加的犁削部件。
It is well known that the edge geometry of a cutting tool affects the forces measured in metal cutting. Two experimental methods have been suggested in the past to extract the ploughing (non-cutting) component from the (total) measured force; 1) the extrapolation approach and 2) the dwell force technique. This study reports the behavior of zinc during orthogonal machining, using tools of controlled edge radius. It was determined that application of neither the extrapolation nor dwell approaches yielded a material response that is consistent with the known behavior of zinc. Further analysis shows that the edge geometry modifies the shear zone of the material and thereby modifies the forces. When analyzed this way, the measured force data yield the expected material response without requiring recourse to an additional ploughing component.