@inproceedings{d17d4ed28b1c4032a0a0b6ec3b5ec322,
title = "Effect of scanning speed and gas flow rate on surface roughness of LMD titanium-alloy",
abstract = "This study investigated the effect of scanning speed and gas flow rate on surface finish produced during the laser metal deposition process of Ti6A14V, an important aerospace alloy. In this work, Nd-YAG laser was employed with coaxial powder deposition nozzle attached to the end effector of a Kuka robot. The laser power was maintained at 3.0 kW and the powder flow rate at a value 2.88 g/min. The scanning speed was varied between 0.01 and 0.05 m/s and the gas flow rate was varied between 1 and 5 I/min. A total of ten samples were produced and the surface roughness was measured using the average of five measurements from each sample. The microstructure was also studied with optical microscope to relate it to the surface roughness. The results showed that, the average surface finish increased as the scanning speed was increased. Conversely, as the gas flow rate was increased the average surface roughness was reduced. In optimizing the laser metal deposition process, the processing parameters need to be optimized. The results from this study will assist in choosing the right powder flow rate and scanning speed especially in applications such as repair and surface modification.",
keywords = "Additive manufacturing, Laser metal deposition (LMD), Process parameter, Scanning speed, Surface finish, Titanium alloy",
author = "Mahamood, {Rasheedat M.} and Akinlabi, {Esther T.}",
year = "2016",
language = "English",
series = "Lecture Notes in Engineering and Computer Science",
publisher = "Newswood Limited",
pages = "958--962",
editor = "Grundfest, {Warren S.} and Craig Douglas and Ao, {S. I.}",
booktitle = "WCECS 2016 - World Congress on Engineering and Computer Science 2016",
note = "2016 World Congress on Engineering and Computer Science, WCECS 2016 ; Conference date: 19-10-2016 Through 21-10-2016",
}
