Freeform Fabrication of Intermetallic Alloys by 3D Micro Welding

Miyamoto, Yoshinari; Terakubo, Masayuki; Katou, Tomohiro; Oh, Janghwan; Kirihara, Soshu; Matsuura, Kiyotaka; Kudoh, Masayuki

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タイトル	Freeform Fabrication of Intermetallic Alloys by 3D Micro Welding
著者	Miyamoto, Yoshinari Miyamoto, Yoshinari
	Terakubo, Masayuki Terakubo, Masayuki
	Katou, Tomohiro Katou, Tomohiro
	Oh, Janghwan Oh, Janghwan
	Kirihara, Soshu Kirihara, Soshu
	Matsuura, Kiyotaka Matsuura, Kiyotaka
	Kudoh, Masayuki Kudoh, Masayuki
キーワード等	Freeform fabrication
	3D micro welding
	Intermetallic alloy
	3D objects
抄録	A novel freeform fabrication method for refractory metals named 3D Micro Welding (3DMW) has been proposed, which is rapid prototyping combined with TIG (Tungsten Inert Gas) welding. Formation of beads and simple pin objects composed of Ti-Ni and Ti-Fe intermetallic alloy phases was attempted. As the peak arc current increased from 5A to 30A, the bead diameter increased in both systems. Ti, Ti₂Ni and TiNi phases were formed in the Ti-Ni system, and Ti, TiFe and TiFe₂ phases in the Ti-Fe system. Simple intermetallic alloy pin objects of these two systems were formed by alternate stacking of their component wires and their microstructures were observed. No pores or cracks were observed and the uniform composition remained. Exothermic SHS reactions should take place and assist the intermetallic alloy formation. 3D titanium objects of ring and double helix shapes were formed directly from their computer models without using molds or dies.
公開者	大阪大学接合科学研究所
公開者の別表記	Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)	オオサカダイガクセツゴウカガクケンキュウジョ
掲載誌名	Transactions of JWRI
巻	34
号	2
開始ページ	45
終了ページ	49
刊行年月	2005-12
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/4143
言語	英語
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.34 No.2 (2005-12)

著者版フラグ	publisher
NII資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	Transactions of JWRI.34(2) P.45-P.49
DC.title	Freeform Fabrication of Intermetallic Alloys by 3D Micro Welding
DC.creator	Miyamoto, Yoshinari
	Terakubo, Masayuki
	Katou, Tomohiro
	Oh, Janghwan
	Kirihara, Soshu
	Matsuura, Kiyotaka
	Kudoh, Masayuki
DC.publisher	大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2005-12
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/4143
DC.subject	Freeform fabrication
	3D micro welding
	Intermetallic alloy
	3D objects
DCTERMS.abstract	A novel freeform fabrication method for refractory metals named 3D Micro Welding (3DMW) has been proposed, which is rapid prototyping combined with TIG (Tungsten Inert Gas) welding. Formation of beads and simple pin objects composed of Ti-Ni and Ti-Fe intermetallic alloy phases was attempted. As the peak arc current increased from 5A to 30A, the bead diameter increased in both systems. Ti, Ti₂Ni and TiNi phases were formed in the Ti-Ni system, and Ti, TiFe and TiFe₂ phases in the Ti-Fe system. Simple intermetallic alloy pin objects of these two systems were formed by alternate stacking of their component wires and their microstructures were observed. No pores or cracks were observed and the uniform composition remained. Exothermic SHS reactions should take place and assist the intermetallic alloy formation. 3D titanium objects of ring and double helix shapes were formed directly from their computer models without using molds or dies.
citation_title	Freeform Fabrication of Intermetallic Alloys by 3D Micro Welding
citation_author	Miyamoto, Yoshinari
	Terakubo, Masayuki
	Katou, Tomohiro
	Oh, Janghwan
	Kirihara, Soshu
	Matsuura, Kiyotaka
	Kudoh, Masayuki
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2005-12
citation_journal_title	Transactions of JWRI
citation_volume	34
citation_issue	2
citation_firstpage	45
citation_lastpage	49
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/4143
citation_keywords	Freeform fabrication
	3D micro welding
	Intermetallic alloy
	3D objects

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