Experimental and simulative analysis of an adapted methodology for decoupling tool wear in end milling
Experimental and simulative analysis of an adapted methodology for decoupling tool wear in end milling
复制标题
端铣刀具磨损解耦方法的实验和模拟分析
DOI：
10.1016/j.mfglet.2022.07.050
复制
发表时间：
2022
影响因子：
3.9
通讯作者：
P. Wiederkehr
中科院分区：
文献类型：
--
作者：
N. Potthoff;A. Agarwal;F. Wöste;J. Liß;L. Mears;P. Wiederkehr
Inconel 718等镍基高温合金的加工仍然是一个巨大的挑战。这些材料的高强度和耐温性导致机械加工性差，导致高加工力和广泛的刀具磨损。然而，这种磨损在达到某一点时是随机的，并且难以预测。 为了产生一致的磨损条件，可以通过使用磨削产生人工磨损来将刀具磨损与铣削过程分离。本文提出并分析了一种多轴解耦刀具磨损的方法。因此，扫描电子显微镜图像的不同磨损状态-磨损和人工磨损-进行了分析。 此外，自然和人为磨损刀片发生的过程中的力进行了比较，在正交切削实验作为一个类比设置。最后，有限元分析，使用一种新的方法分割相关的切削刃部分，使用数字显微镜图像提供了定性的见解不同的磨损条件的影响。
The machining of nickel-based superalloys such as Inconel 718 still poses a great challenge. The high strength and temperature resistance of these materials lead to poor machinability, resulting in high process forces and extensive tool wear. However, this wear is stochastic when reaching a certain point and is di cult to predict. To generate consistent wear conditions, the tool wear can be decoupled from the milling process by creating artificial wear using grinding. In this paper, a multi-axis approach for decoupling tool wear is presented and analyzed. Therefore, scanning electron microscope images of di erent wear states – worn and artificially worn – are analyzed. In addition, the occurring process forces of naturally and contrived worn inserts are compared in orthogonal cutting experiments as an analogy setup. Finally, a finite element analysis using a novel methodology for segmenting relevant cutting edge sections using digital microscope images provides qualitative insights on the influence of different wear conditions.