Results of Surface Integrity and Fatigue Study of Wire-EDM compared to Broaching and Grinding for demanding Jet Engine Components made of Inconel 718

被引：71

作者：

Welling, D. ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Lab Machine Tools & Prod Engn WZL, D-52074 Aachen, Germany

来源：

2ND CIRP CONFERENCE ON SURFACE INTEGRITY (CSI) | 2014年 / 13卷

关键词：

Wire-EDM; Inconel; 718; Surface Integrity; High Cycle Fatigue; MACHINABILITY; LIFE;

D O I：

10.1016/j.procir.2014.04.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

According to the jet engines fir tree slot production requirements, HCF bending test samples were produced by broaching and wire-EDM in Inconel 718. As an additional reference, a ground series has been produced. Initially, the surface integrities of the samples were checked by surface roughness measurements, SEM and rim zone views. All specimens meet the requirements of fir tree slot production. Following, the correlation between the surface integrity and HCF behavior was analyzed on a bending fatigue test bed. The reference series (grinding) possess the highest fatigue strength. The fatigue strength of the wire-EDMed and broached specimen are in the same magnitude. Therefore, from technological point of view wire-EDM provides an alternative to the established broaching process for the production of fir tree slots. (C) 2014 The Authors. Published by Elsevier B.V.

引用

页码：339 / 344

页数：6

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