Evaluation of environmentally friendly lubricants for cold forging

被引:20
作者
Sagisaka, Yoshihiro [1 ]
Ishibashi, Itaru [2 ]
Nakamura, Tamotsu [3 ]
Sekizawa, Masahiro [2 ]
Sumioka, Yuh [4 ]
Kawano, Masahiro [5 ]
机构
[1] Ind Res Inst Shizuoka Prefecture, Shizuoka 4211298, Japan
[2] Sumico Lubricant Co Ltd, Inabe 5110207, Japan
[3] Shizuoka Univ, Facil Engn, Naka Ku, Hamamatsu, Shizuoka 4328561, Japan
[4] Toyota Auto Body Co Ltd, Kariya, Aichi 4488666, Japan
[5] Zeno Tech Co Ltd, Okayama 7000853, Japan
关键词
Cold forging; Tribology; Environmentally friendly lubricant; Conversion coating; Friction test; FRICTION; EXTRUSION; BACKWARD;
D O I
10.1016/j.jmatprotec.2012.04.011
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The authors proposed double-layer-type environmentally friendly lubricants, which were composed of an undercoat, superior in adhering to a material, and an overcoat, superior in reducing the friction between the material and the die. The performance of these lubricants for cold forging was evaluated by the ring compression test, the combined forward rod-backward can extrusion-type friction test and the combined forward conical can-backward straight can extrusion-type friction test. The double-layer-type lubricants showed comparable friction characteristics and anti-pick-up properties to a conversion coating lubricant, when the film thickness and surface treatment before coating were improved. In a practical application by cold multistage forging, the double-layer-type lubricants showed a similar performance to a conversion coating lubricant. (C) 2012 Elsevier B.V. All rights reserved.
引用
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页码:1869 / 1874
页数:6
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