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A Honeycomb-Structured Ti-6Al-4V Oil–Gas Separation Rotor Additively Manufactured by Selective Electron Beam Melting for Aero-engine Applications

A Honeycomb-Structured Ti-6Al-4V Oil–Gas Separation Rotor Additively Manufactured by Selective Electron Beam Melting for Aero-engine Applications

Authors :
N. Liu
J. Gu
L. Jia
Ma Qian
Q. B. Wang
G. Y. Yang
H. P. Tang
Source :
JOM. 68:799-805
Publication Year :
2016
Publisher :
Springer Science and Business Media LLC, 2016.

Abstract

Oil–gas separation is a key process in an aero-engine lubrication system. This study reports an innovative development in oil–gas separation. A honeycomb-structured rotor with hexagonal cone-shaped pore channels has been designed, additively manufactured from Ti-6Al-4V using selective electron beam melting (SEBM) and assessed for oil–gas separation for aero-engine application. The Ti-6Al-4V honeycomb structure showed a high compressive strength of 110 MPa compared to less than 20 MPa for metal foam structures. The oil–gas separation efficiency of the honeycomb-structured separation rotor achieved 99.8% at the rotation speed of 6000 rpm with much lower ventilation resistance (17.3 kPa) than that of the separator rotor constructed using a Ni-Cr alloy foam structure (23.5 kPa). The honeycomb-structured Ti-6Al-4V separator rotor produced by SEBM provides a promising solution to more efficient oil–gas separation in the aero-engine lubrication system.

Details

ISSN :
15431851 and 10474838
Volume :
68
Database :
OpenAIRE
Journal :
JOM
Accession number :
edsair.doi...........b3c2cfca16d39be6a72935c239277786
Full Text :
https://doi.org/10.1007/s11837-015-1778-9