Freeform Fabrication Method of Alloys and Intermetallic Compounds by 3D Micro Welding

Horii, Toshihide; Kirihara, Soshu

doi:https://doi.org/10.18910/9778

Freeform Fabrication Method of Alloys and Intermetallic Compounds by 3D Micro Welding

Horii, Toshihide; Kirihara, Soshu

Transactions of JWRI, 2008, 37(2), 63-68

アクセス数:317件（2025-07-20 17:32 集計）

固定URL: https://doi.org/10.18910/9778

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タイトル	Freeform Fabrication Method of Alloys and Intermetallic Compounds by 3D Micro Welding
著者	著者名 Horii, Toshihide
著者	NRID 1000040362587 1000040362587 researchmap permalink sohsu-kirihara sohsu-kirihara Scopus Author ID 7003850191 7003850191 著者名 Kirihara, Soshu
キーワード等	3D micro welding
	Rapid prototyping
	Micro TIG welding
	Inconel alloy 600
	Titanium aluminides
抄録	A novel rapid prototyping method for metals named 3D micro welding (3DMW) was demonstrated. It is a combined process of a micro-TIG welding and a layered manufacturing method. Small metal beads with ～1 mm diameter are formed by applying a micro arc to the top of a metal wire of 200 μm in diameter. A fused bead is welded to a metal substrate or previously formed beads. By continuing this process and stacking beads layer by layer under the control of a computer system, 3D objects of various metals and alloys can be formed. The system consists of four sections; a forming stage, an arc control unit, system control computers, and a video monitoring device. A 3D model is designed on CAD software and sliced into thin layers by using commercial slicing software. After the slicing process, the arrangement of beads in a layer is calculated by in-house developed software. In this study, freeform fabrication of Inconel alloy 600 and Ti-Al based intermetallic alloy were demonstrated. The mechanical properties of formed samples with Inconel alloy 600 were measured and the phase composition of samples of Ti-Al based intermetallics alloy were analyzed. The yield strength, density and Vickers hardness of Inconel 600 objects show comparable values to the commercial alloys. These superior properties suggest that actual micro components or tools of metals with high strength, high wear, heat and oxidation resistances can be formed without molds by 3DMW.
出版者	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
収録物名	Transactions of JWRI
巻(号)	37(2)
ページ	63-68
刊行年月	2008-12
言語	英語
ハンドルURL	https://hdl.handle.net/11094/9778
DOI	https://doi.org/10.18910/9778
PISSN	03874508
NCID	AA00867058
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.37 No.2 (2008-12)

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. 2008, 37(2), p. 63-68
DC.title	Freeform Fabrication Method of Alloys and Intermetallic Compounds by 3D Micro Welding
DC.creator	Horii, Toshihide
DC.creator	Kirihara, Soshu
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2008-12
DC.subject	3D micro welding
	Rapid prototyping
	Micro TIG welding
	Inconel alloy 600
	Titanium aluminides
DCTERMS.abstract	A novel rapid prototyping method for metals named 3D micro welding (3DMW) was demonstrated. It is a combined process of a micro-TIG welding and a layered manufacturing method. Small metal beads with ～1 mm diameter are formed by applying a micro arc to the top of a metal wire of 200 μm in diameter. A fused bead is welded to a metal substrate or previously formed beads. By continuing this process and stacking beads layer by layer under the control of a computer system, 3D objects of various metals and alloys can be formed. The system consists of four sections; a forming stage, an arc control unit, system control computers, and a video monitoring device. A 3D model is designed on CAD software and sliced into thin layers by using commercial slicing software. After the slicing process, the arrangement of beads in a layer is calculated by in-house developed software. In this study, freeform fabrication of Inconel alloy 600 and Ti-Al based intermetallic alloy were demonstrated. The mechanical properties of formed samples with Inconel alloy 600 were measured and the phase composition of samples of Ti-Al based intermetallics alloy were analyzed. The yield strength, density and Vickers hardness of Inconel 600 objects show comparable values to the commercial alloys. These superior properties suggest that actual micro components or tools of metals with high strength, high wear, heat and oxidation resistances can be formed without molds by 3DMW.
DC.identifier	10.18910/9778
DC.format	9778
citation_title	Freeform Fabrication Method of Alloys and Intermetallic Compounds by 3D Micro Welding
citation_author	Horii, Toshihide
citation_author	Kirihara, Soshu
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2008-12
citation_journal_title	Transactions of JWRI
citation_volume	37
citation_issue	2
citation_firstpage	63
citation_lastpage	68
citation_public_url	https://hdl.handle.net/11094/9778
citation_doi_detail	10.18910/9778
citation_doi	https://doi.org/10.18910/9778

Freeform Fabrication Method of Alloys and Intermetallic Compounds by 3D Micro Welding

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