スパッタレスSLM法を用いたチタン合金の積層造形

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2017/05/01

タイトル(英語): Titanium Alloy Plate Fabrication by Sputter-less Selective Laser Melting

著者名: 佐藤 雄二　（大阪大学接合科学研究所加工プロセス学分野），塚本 雅裕　（大阪大学接合科学研究所加工プロセス学分野），山下 順広　（石川県工業試験場），升野 振一郎　（大阪大学接合科学研究所加工プロセス学分野），山下 顕資　（大阪大学大学院工学研究科），山縣 秀人　（大阪大学大学院工学研究科），東野 律子　（大阪大学接合科学研究所加工プロセス学分野）

著者名(英語): Yuji Sato (Joining and Welding Research Institute), Masahiro Tsukamoto (Joining and Welding Research Institute), Yorihiro Yamashita (Industrial Research Institute of Ishikawa), Shinichiro Masuno (Joining and Welding Research Institute), Kensuke Yamashita (Graduate School of Engineering Osaka University), Shuto Yamagata (Graduate School of Engineering Osaka University), Ritsuko Higashino (Joining and Welding Research Institute)

キーワード: レーザ金属溶融法，3次元積層造形法，Ti-6Al-4V　　selective laser melting，additive manufacturing，Ti-6Al-4V

要約(英語): We demonstrated that a Ti-6Al-4V (Ti64) plate, which is clinically applied for artificial bone in human body because of their light and biocompatibility, was fabricated by selective laser melting (SLM) in vacuum. The chamber's pressure was set to 1.0×10-2 Pa to prevent the Ti64 powder from oxidizing. The base-plate of the powder bed was vertically dropped in determined steps, and Ti64 powder supplied from the powder feeder was then smoothed by a roller on top of the powder bed. The single-mode fiber laser irradiated through 3-axis Galvano mirror and melted the powder to make a molten pool in order to form 2D metallic structures. In order to investigate the laser melting and solidification dynamics, a process of Ti64 plate fabrication was captured by high speed video camera. It was also determined that crystal orientation was evaluated with X-ray diffraction (XRD). From XRD analysis, it was recorded from the powder peaks of α (1011), α (0002), α (1010), and α (1012) that the crystal orientation is composed mainly of martensitic alpha by XRD analysis. Diffraction peaks corresponding to β (110) were detected in vacuum SLM processed samples.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.137 No.5 （2017） 特集：革新的な光応用技術

本誌掲載ページ: 265-270 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/137/5/137_265/_article/-char/ja/