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jwri38_01_025
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論文情報
タイトル
Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process
著者
Imai, Hisashi
Imai, Hisashi
Li, shufeng
Li, shufeng
Atsumi, Haruhiko
Atsumi, Haruhiko
Kosaka, Yoshiharu
Kosaka, Yoshiharu
Kojima, Akimichi
Kojima, Akimichi
Umeda, Junko
Umeda, Junko
Kondoh, Katsuyoshi
Kondoh, Katsuyoshi
キーワード等
Cu-41Zn Brass
Lead-free
Bismuth
Machinability
Machining chip
抄録
In this paper, the uniform distribution process of bismuth particles in Cu-40Zn brass alloy by powder metallurgy (P/M) and machinable lead-free P/M brass with bismuth are described. Cu-40Zn Brass with bismuth powders produced by the rapid solidification processing were used as raw materials, having mean particle sizes of 150 μm. Three kinds of billets were prepared for the extrusion, namely green compact, sintered billets by using spark plasma sintering (SPS) and cast ingot. Bismuth dispersed in brass powder formed grains and dissolved into the powder surface by the heat treatment at the temperature over the melting point of bismuth. The behavior of bismuth existing in the primary particle boundary caused a decrease in the elongation of the extruded brass. Drill cutting ability was improved for the extruded material with the continuous machining chip. The shape of the machining chip was affected by the combination of brass matrix and the distribution of bismuth.
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
38
号
1
開始ページ
25
終了ページ
30
刊行年月
2009-09
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/5502
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.38 No.1 (2009-09)
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.38(1) P.25-P.30
DC.title
Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process
DC.creator
Imai, Hisashi
Li, shufeng
Atsumi, Haruhiko
Kosaka, Yoshiharu
Kojima, Akimichi
Umeda, Junko
Kondoh, Katsuyoshi
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
2009-09
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/5502
DC.subject
Cu-41Zn Brass
Lead-free
Bismuth
Machinability
Machining chip
DCTERMS.abstract
In this paper, the uniform distribution process of bismuth particles in Cu-40Zn brass alloy by powder metallurgy (P/M) and machinable lead-free P/M brass with bismuth are described. Cu-40Zn Brass with bismuth powders produced by the rapid solidification processing were used as raw materials, having mean particle sizes of 150 μm. Three kinds of billets were prepared for the extrusion, namely green compact, sintered billets by using spark plasma sintering (SPS) and cast ingot. Bismuth dispersed in brass powder formed grains and dissolved into the powder surface by the heat treatment at the temperature over the melting point of bismuth. The behavior of bismuth existing in the primary particle boundary caused a decrease in the elongation of the extruded brass. Drill cutting ability was improved for the extruded material with the continuous machining chip. The shape of the machining chip was affected by the combination of brass matrix and the distribution of bismuth.
citation_title
Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process
citation_author
Imai, Hisashi
Li, shufeng
Atsumi, Haruhiko
Kosaka, Yoshiharu
Kojima, Akimichi
Umeda, Junko
Kondoh, Katsuyoshi
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2009-09
citation_journal_title
Transactions of JWRI
citation_volume
38
citation_issue
1
citation_firstpage
25
citation_lastpage
30
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/5502
citation_keywords
Cu-41Zn Brass
Lead-free
Bismuth
Machinability
Machining chip