Development of selective laser sintering for titanium alloy powder -3rd report

Hideshi Miura, Toshiko Osada, Hideki Ishibashi, Kenta Okawachi, Makoto Uemura, Makoto Fujita, Nobuhiro Arimoto

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Selective laser sintering (SLS) is one of the promising processes for rapid production of complex shaped parts. This paper investigates the characteristics of multi-layered compacts made by selective laser sintering using Ti-6Al-4V, Ti-6Al-7Nb powders toward fabrication of porous bone substitutes. The relative density and tensile strength were improved by optimizing the laser forming parameters. As a result, the maximum tensile strength was 550 MPa, 580 MPa for Ti-6Al-4V and Ti-6Al-7Nb compacts, respectively. In addition, although the linear laser irradiated section was not continuous due to the surface tension, it was possible to form the linear section by first low laser power irradiation (presintering) followed by second high laser power irradiation. Finally, density and compressive strength of the honey comb structure via this process were approximately similar to those of human bones.

Original languageEnglish
Pages (from-to)738-742
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume55
Issue number10
DOIs
Publication statusPublished - Oct 1 2008

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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