Simulation based analysis and optimisation of the cutting edge micro shape for machining of nickel-base alloys

Simulation based analysis and optimisation of the cutting edge micro shape for machining of nickel-base alloys

The modification of the cutting edge micro shape by wet abrasive jet machining is utilized to increase the performance of cutting tools by means of productivity and tool life. However, for numerous cutting processes the optimal micro shape of cutting edges is still unknown. In this regard, the paper deals with a method to predict optimized cutting edge micro shapes using FE-Simulation. The method includes the consideration of the local process conditions like radius dependent cutting speeds in drilling processes depicted by the example of drilling a nickel-base alloy. In this paper first simulation analyses are compared to experimental investigations. In addition, predictions of the mechanical loads dependent on the applied cutting edge micro shapes are presented. (C) 2017 The Authors. Published by Elsevier B.V.

通过湿磨料射流加工对切削刃微观形状进行修整，旨在通过提高生产率和刀具寿命来提升切削刀具的性能。然而，对于众多切削工艺而言，切削刃的最佳微观形状仍然未知。在这方面，本文论述了一种利用有限元模拟来预测优化的切削刃微观形状的方法。该方法考虑了局部工艺条件，例如在钻削镍基合金的示例中所描述的钻削过程中与半径相关的切削速度。在本文中，首先将模拟分析与实验研究进行了比较。此外，还给出了取决于所应用的切削刃微观形状的机械载荷预测。（C）2017作者。由爱思唯尔有限公司出版。