Fatigue life of machined Ti6Al4V alloy under different cooling conditions

被引：24

作者：

Umbrello, Domenico ^{[1
]}

Rotella, Giovanna ^{[2
]}

机构：

[1] Univ Calabria, Dept Mech Energy & Management Engn, I-87036 Arcavacata Di Rende, CS, Italy

[2] Univ Calabria, Dept Comp Engn Modeling Elect & Syst Engn, I-87036 Arcavacata Di Rende, CS, Italy

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2018年 / 67卷 / 01期

关键词：

Cutting; Fatigue; Cooling; HIGH-CYCLE FATIGUE; SURFACE INTEGRITY; TI-6AL-4V; MICROSTRUCTURE; PREDICTION; INITIATION; STRESS; MODEL;

D O I：

10.1016/j.cirp.2018.03.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents an extensive experimental study on the influence of machining parameters and cooling conditions on the overall fatigue life of a titanium component. In particular, dry, minimum quantity lubrication, cryogenic and high-pressure air jet were compared as cooling/lubrication strategies for the finishing operation. The obtained dog-bone cylindrical fatigue specimens were tested under uniaxial pull-pull cyclic loading in the high cycle fatigue range. An analytical model is proposed to predict the high cycle fatigue strength for the material under investigation demonstrating its effectiveness to reduce the number of tests needed. (C) 2018 Published by Elsevier Ltd on behalf of CIRP.

引用

页码：99 / 102

页数：4

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