Effects of Porous Surface Layer on Lubrication Evaluated by Ring Compression Friction Test

Oyachi, Yukiya; Utsunomiya, Hiroshi; Sakai, Tetsuo; Yoshikawa, Takeshi; Tanaka, Toshihiro

doi:info:doi/10.2355/isijinternational.52.858

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タイトル	Effects of Porous Surface Layer on Lubrication Evaluated by Ring Compression Friction Test
著者	Oyachi, Yukiya Oyachi, Yukiya
	Utsunomiya, Hiroshi Utsunomiya, Hiroshi
	Sakai, Tetsuo Sakai, Tetsuo
	Yoshikawa, Takeshi Yoshikawa, Takeshi
	Tanaka, Toshihiro Tanaka, Toshihiro
キーワード等	porous metal
	cold working
	lubrication
	oil pit
	tribology
	carbon steel
抄録	Lubrication is an important parameter in cold working of steels. Metal soap on phosphate coating is the most commonly used lubrication system in industries at present, but the technique is less productive and environmentally hazardous. The authors proposed an alternative lubrication process which makes use of porous layer formed on the surface of the workpiece by oxidization and chemical reduction in the previous paper. The technique, due to the porous layer, enables to hold more liquid lubricant on the surface and consequently to decrease the friction. This research expands the range of application of this technique. The porous layer is applied to three types of steels containing different levels of carbon and its effects are analyzed under three lubrication conditions; unlubricated, machine oil and grease, by ring-compression test. Another important condition, compression speed is investigated by using two types of equipments, a hydraulic press (low speed) or a mechanical press (high speed). This study proves that the porous layer technique is applicable to a range of types of steels reducing the friction coefficient, and at the same time provides some insights to explain the mechanics of the technique. The lubrication effects are explained by the thickness of lubricant held at the interface between the die and the surface of workpiece.
公開者	日本鉄鋼協会
公開者の別表記	The Iron and Steel Institute of Japan
公開者 (ヨミ)	ニホン　テッコウ　キョウカイ
掲載誌名	ISIJ International
巻	52
号	5
開始ページ	858
終了ページ	862
刊行年月	2012
ISSN	09151559
NCID	AA10680712
DOI (出版社版)	info:doi/10.2355/isijinternational.52.858
URL	http://hdl.handle.net/11094/26384
権利情報	© 2012 ISIJ
言語	英語
カテゴリ	学術雑誌論文 Journal Article

著者版フラグ	publisher
NII資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	ISIJ International.52(5) P.858-P.862
DC.title	Effects of Porous Surface Layer on Lubrication Evaluated by Ring Compression Friction Test
DC.creator	Oyachi, Yukiya
	Utsunomiya, Hiroshi
	Sakai, Tetsuo
	Yoshikawa, Takeshi
	Tanaka, Toshihiro
DC.publisher	日本鉄鋼協会
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2012
DC.identifier	info:doi/10.2355/isijinternational.52.858
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/26384
DC.subject	porous metal
	cold working
	lubrication
	oil pit
	tribology
	carbon steel
DCTERMS.abstract	Lubrication is an important parameter in cold working of steels. Metal soap on phosphate coating is the most commonly used lubrication system in industries at present, but the technique is less productive and environmentally hazardous. The authors proposed an alternative lubrication process which makes use of porous layer formed on the surface of the workpiece by oxidization and chemical reduction in the previous paper. The technique, due to the porous layer, enables to hold more liquid lubricant on the surface and consequently to decrease the friction. This research expands the range of application of this technique. The porous layer is applied to three types of steels containing different levels of carbon and its effects are analyzed under three lubrication conditions; unlubricated, machine oil and grease, by ring-compression test. Another important condition, compression speed is investigated by using two types of equipments, a hydraulic press (low speed) or a mechanical press (high speed). This study proves that the porous layer technique is applicable to a range of types of steels reducing the friction coefficient, and at the same time provides some insights to explain the mechanics of the technique. The lubrication effects are explained by the thickness of lubricant held at the interface between the die and the surface of workpiece.
DC.rights	© 2012 ISIJ
citation_title	Effects of Porous Surface Layer on Lubrication Evaluated by Ring Compression Friction Test
citation_author	Oyachi, Yukiya
	Utsunomiya, Hiroshi
	Sakai, Tetsuo
	Yoshikawa, Takeshi
	Tanaka, Toshihiro
citation_publisher	日本鉄鋼協会
citation_language	英語
citation_date	2012
citation_journal_title	ISIJ International
citation_volume	52
citation_issue	5
citation_firstpage	858
citation_lastpage	862
citation_issn	09151559
citation_doi	info:doi/10.2355/isijinternational.52.858
citation_public_url	http://hdl.handle.net/11094/26384
citation_keywords	porous metal
	cold working
	lubrication
	oil pit
	tribology
	carbon steel

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