RT Journal Article
SR Electronic
A1 Bača, Adrián
A1 Konečná, Radomila
A1 Nicoletto, Gianni
A1 Kunz, Ludvík
T1 Effect of Surface Roughness on the Fatigue Life of Laser Additive Manufactured Ti6Al4V Alloy
JF Manufacturing Technology Journal
YR 2015
VO 15
IS 4
SP 498
OP 502
DO 10.21062/ujep/x.2015/a/1213-2489/MT/15/4/498
UL https://journalmt.com/artkey/mft-201504-0001.php
AB Direct Metal Laser Sintering enables production of fully dense metal parts with comparable or higher tensile properties as compared to the conventionally produced parts. However, for a more widespread use of this additive manufacturing technique, material data should be obtained and evaluated with respect to the influencing manufacturing factors. In the case of Ti6Al4V alloy, the fatigue performance can be highly susceptible to the process related issues, such as build direction, porosity and surface condition. This study was undertaken to examine the fatigue life of Ti6Al4V specimens manufactured by Direct Metal Laser Sintering (DMLS) technique and to investigate the influence of the surface state on the fatigue life. A high degree of anisotropy in the fatigue performance associated with the specimen build orientation was determined.