Pure titanium fabrication with spatter-less selective laser melting in vacuum

Selective laser melting (SLM), which is an additive manufacturing technology, is attractive due to its ability to freely form shapes. SLM forms a 3D material by building it layer-by-layer from a metal powder. However, some issues have yet to be resolved, including dimensional accuracy, surface finis...

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Autores principales:	Yuji Sato, Yuta Mizuguchi, Keisuke Takenaka, Norio Yoshida, Sasitorn Srisawadi, Dhritti Tanprayoon, Tomomasa Ohkubo, Tetsuo Suga, Masahiro Tsukamoto
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	SLM Spatter Gaussian beam Pure titanium Surface roughness Hardness Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/9866d7f10a494b3c961033f33db87c26
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spelling	oai:doaj.org-article:9866d7f10a494b3c961033f33db87c262021-11-04T04:43:47ZPure titanium fabrication with spatter-less selective laser melting in vacuum2666-950110.1016/j.rio.2021.100184https://doaj.org/article/9866d7f10a494b3c961033f33db87c262021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666950121001292https://doaj.org/toc/2666-9501Selective laser melting (SLM), which is an additive manufacturing technology, is attractive due to its ability to freely form shapes. SLM forms a 3D material by building it layer-by-layer from a metal powder. However, some issues have yet to be resolved, including dimensional accuracy, surface finish, processing time, and mechanical properties such as surface roughness, hardness, and crystal orientation. We demonstrate that pure titanium (Ti), which is clinically used for artificial bone and hard tissue implants because it is lightweight and biocompatible, can be fabricated by the SLM process in vacuum to develop a spatter-less process. The amount of spatter was dependent on the laser scanning rate; at 10 mm/s and an output power of 200 W, the spatter was minimized so that the surface roughness was reduced to 4.2 µm from 50 µm with a laser scanning rate of 50 mm/s. Defects such as pores, voids and delamination were found to be caused with an increase in the amount of spatter.Yuji SatoYuta MizuguchiKeisuke TakenakaNorio YoshidaSasitorn SrisawadiDhritti TanprayoonTomomasa OhkuboTetsuo SugaMasahiro TsukamotoElsevierarticleSLMSpatterGaussian beamPure titaniumSurface roughnessHardnessOptics. LightQC350-467ENResults in Optics, Vol 5, Iss , Pp 100184- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	SLM Spatter Gaussian beam Pure titanium Surface roughness Hardness Optics. Light QC350-467
spellingShingle	SLM Spatter Gaussian beam Pure titanium Surface roughness Hardness Optics. Light QC350-467 Yuji Sato Yuta Mizuguchi Keisuke Takenaka Norio Yoshida Sasitorn Srisawadi Dhritti Tanprayoon Tomomasa Ohkubo Tetsuo Suga Masahiro Tsukamoto Pure titanium fabrication with spatter-less selective laser melting in vacuum
description	Selective laser melting (SLM), which is an additive manufacturing technology, is attractive due to its ability to freely form shapes. SLM forms a 3D material by building it layer-by-layer from a metal powder. However, some issues have yet to be resolved, including dimensional accuracy, surface finish, processing time, and mechanical properties such as surface roughness, hardness, and crystal orientation. We demonstrate that pure titanium (Ti), which is clinically used for artificial bone and hard tissue implants because it is lightweight and biocompatible, can be fabricated by the SLM process in vacuum to develop a spatter-less process. The amount of spatter was dependent on the laser scanning rate; at 10 mm/s and an output power of 200 W, the spatter was minimized so that the surface roughness was reduced to 4.2 µm from 50 µm with a laser scanning rate of 50 mm/s. Defects such as pores, voids and delamination were found to be caused with an increase in the amount of spatter.
format	article
author	Yuji Sato Yuta Mizuguchi Keisuke Takenaka Norio Yoshida Sasitorn Srisawadi Dhritti Tanprayoon Tomomasa Ohkubo Tetsuo Suga Masahiro Tsukamoto
author_facet	Yuji Sato Yuta Mizuguchi Keisuke Takenaka Norio Yoshida Sasitorn Srisawadi Dhritti Tanprayoon Tomomasa Ohkubo Tetsuo Suga Masahiro Tsukamoto
author_sort	Yuji Sato
title	Pure titanium fabrication with spatter-less selective laser melting in vacuum
title_short	Pure titanium fabrication with spatter-less selective laser melting in vacuum
title_full	Pure titanium fabrication with spatter-less selective laser melting in vacuum
title_fullStr	Pure titanium fabrication with spatter-less selective laser melting in vacuum
title_full_unstemmed	Pure titanium fabrication with spatter-less selective laser melting in vacuum
title_sort	pure titanium fabrication with spatter-less selective laser melting in vacuum
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/9866d7f10a494b3c961033f33db87c26
work_keys_str_mv	AT yujisato puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT yutamizuguchi puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT keisuketakenaka puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT norioyoshida puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT sasitornsrisawadi puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT dhrittitanprayoon puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT tomomasaohkubo puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT tetsuosuga puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum AT masahirotsukamoto puretitaniumfabricationwithspatterlessselectivelasermeltinginvacuum
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Pure titanium fabrication with spatter-less selective laser melting in vacuum

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