Friction and wear of cam with laser micro-texture under lubrication

被引：0
|
作者：
Fu Y. [1 ]
Yang W. [1 ]
Zhang H. [1 ]
Hua X. [1 ]
机构：
[1] School of Mechanical Engineering, Jiangsu University
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery | 2010年 / 41卷 / 01期
关键词：
Cam; Geometrical texture; Laser micro-texturing; Tribological properties;
D O I：
10.3969/j.issn.1000-1298.2010.01.041
中图分类号：
学科分类号：
摘要：
Steel-45 surface was treated as micro-texture (groove patterns and concave patterns) by using laser micro-texturing technology. Friction and wear properties of the textured samples were examined by using an UMT-2 wear tester in cam/roller simulation work condition. As the results, the laser micro-texturing surface was significantly improved in the anti-scuffing property and wear resistance compared with the conventional smooth surface. The textured surfaces with groove patterns had higher friction coefficients than the conventional smooth surfaces, while the textured surfaces with concave patterns had lower friction coefficients than the conventional smooth surfaces. The results indicated that the groove patterns on the working surface increase friction and the cavity patterns on the working surface can reduce friction. It can be concluded that an optimal friction reduction effect of the textured surface can be obtained by choosing a suitable concave depth and the ratio of the projected area of the concaves with the total area of the working surface.
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页码：216 / 220
页数：4
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