Finite element prediction of chip geometry and tool/workpiece temperature distributions in orthogonal metal cutting
Finite element prediction of chip geometry and tool/workpiece temperature distributions in orthogonal metal cutting
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DOI：
10.1115/1.2899593
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发表时间：
1990-11
期刊：
影响因子：
--
通讯作者：
J. Strenkowski;Kyoung-jin Moon
中科院分区：
文献类型：
--
作者：
J. Strenkowski;Kyoung-jin Moon
提出了一种模拟正交金属切削的欧拉有限元模型。该模型预测切屑的几何形状和温度分布在工件，芯片和工具，而不需要经验切削数据。借助预测切屑几何形状的能力，还可以确定刀具-切屑接触长度，还可以确定刀具附近流场的特性，如材料速度、应力和应变率分布。有人发现，剪切应力发生在有限的区域在前面的工具，而不是一个单一的剪切平面。通过对6061-T6铝合金的切削试验验证了模型的正确性。良好的相关性与模型的基础上，发现工具的力量和平均工具-芯片界面温度测量。
An Eulerian finite element model is presented that simulates orthogonal metal cutting. The model predicts chip geometry and temperature distribution in the workpiece, chip, and tool without the need for empirical cutting data. With the capability to predict chip geometry, the tool-chip contact length can also be found. Characteristics of the flow field in the vicinity of the tool can also be determined, such as the material velocity, and the stress and strain-rate distributions. It was found that the shear stress occurs over a finite region in front of the tool, rather than a single shear plane. Cutting experiments were performed for aluminum alloy 6061-T6 to validate the model. Good correlation with the model was found based on tool forces and average tool-chip interface temperature measurements.