Processes with thermo-mechanical impact in precision machining ((1) F05)

本课题分析了切削刃半径范围内未变形切屑厚度的接触条件和机械主导载荷，以及较大未变形切屑厚度下的热机械载荷。切削实验和表征材料的修改以及建模和仿真应用，以获得有关有效变形和切屑形成机制及其产生的修改的知识。基于这些研究结果，推导了精密加工过程特征的几个组成部分，特别参考了表面生成的动力学和增量材料体积的多次加载。

In this sub-project contact conditions and mechanically dominated loads for undeformed chip thicknesses in the range of the cutting edge radius as well as the thermo-mechanical loads at larger undeformed chip thicknesses are analyzed. Cutting experiments and characterization of the material modifications as well as modeling and simulation are applied to gain knowledge about the effective deformation and chip formation mechanisms and their resulting modifications. Based on the results of these investigations, several components of the Process Signature for precision machining are derived with particular reference to dynamics of the surface generation and multiple loading of incremental material volumes.