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

Oyachi, Yukiya; Utsunomiya, Hiroshi; Sakai, Tetsuo et al.

ISIJ International, 2012, 52(5), 858-862

Number of Access:819（2025-10-05 09:55 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/26384

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Title
Effects of Porous Surface Layer on Lubrication Evaluated by Ring Compression Friction Test
Creator
CreatorName
Oyachi, Yukiya
NRID
1000080252584 1000080252584
researchmap permalink
read0042799 read0042799
Scopus Author ID
7102139699 7102139699
CreatorName
Utsunomiya, Hiroshi
NRID
1000080029298 1000080029298
CreatorName
Sakai, Tetsuo
NRID
1000090435933 1000090435933
CreatorName
Yoshikawa, Takeshi
NRID
1000010179773 1000010179773
researchmap permalink
read0013978 read0013978
CreatorName
Tanaka, Toshihiro
Subject
porous metal
cold working
lubrication
oil pit
tribology
carbon steel
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.
Publisher
日本鉄鋼協会
The Iron and Steel Institute of Japan
ニホン　テッコウ　キョウカイ
Source Title
ISIJ International
Volume (Issue)
52(5)
Page
858-862
Date of Issued
2012
Language
English
Handle URL
https://hdl.handle.net/11094/26384
PISSN
09151559
NCID
AA10680712
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.2355/isijinternational.52.858
Access Rights
open access
CopyRight
© 2012 ISIJ
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article