| WANG Ze-xiao,CHEN Wen-gang,ZHANG Lu-zhong,HAO Xing-xing,YIN Hong-ze,GUO Wen-xuan,JING Pei-yao,ZHANG Ju-bang.Research Progress on the Influence of Geometric Characteristics and Working Conditions on the Friction Characteristics of Surface Texture[J],51(10):89-100 |
| Research Progress on the Influence of Geometric Characteristics and Working Conditions on the Friction Characteristics of Surface Texture |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.10.010 |
| KeyWord:surface texture texture morphology geometrical parameter distribution form antifriction mechanism |
| Author | Institution |
| WANG Ze-xiao |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
| CHEN Wen-gang |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
| ZHANG Lu-zhong |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
| HAO Xing-xing |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
| YIN Hong-ze |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
| GUO Wen-xuan |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
| JING Pei-yao |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
| ZHANG Ju-bang |
College of Mechanical and Transportation, Southwest Forestry University, Kunming , China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountainous Areas of Yunnan Province, Kunming , China |
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| Abstract: |
| Surface texture technology is a kind of surface modification method which is convenient to process and does not destroy the essence of materials. The surface texture technology processes the surface of the material with a certain shape and regular microstructure to improve the surface friction properties of the material. However, there are too many variable factors that affect the friction performance under different working conditions, so that the optimal general scheme of each design parameter can not be obtained. In this paper, the research and development of antifriction effect of surface texture at home and abroad is reviewed from the introduction of additional hydrodynamic pressure effect to the morphology, size, depth, area share, pit bottom shape, orientation and distribution of surface texture. In this paper, the effects of surface texture morphology, geometric parameters and distribution on its tribological properties are discussed respectively. The morphology of surface texture is divided into protruding texture and concave texture, in which protruding texture is mainly used to increase friction coefficient and hydrophobicity, while sag texture is generally used to reduce friction coefficient and reduce the resistance of sliding process. In engineering, in order to improve the service life of parts, the sunken texture which can reduce the friction coefficient and improve the friction performance is generally adopted. This paper focuses on the influence of the surface texture morphology of continuous texture and discrete texture on the surface friction properties of materials in concave texture. Continuous texture is an efficient means of drag reduction, and its advantage is that it is convenient for processing. At the same time, it is also better than discrete texture in absorbing fine debris. Under good lubrication conditions, wear debris is easy to move in the grooves of continuous texture, which can effectively prevent a large number of wear debris from filling texture and causing texture failure. The discrete texture with reasonable arrangement of pit texture can store the shedding wear particles in the process of sliding, reduce the contact area and solve the problem of lack of oil. At present, the excellent performance of discrete texture in lubrication and wear reduction has attracted wide attention of researchers at home and abroad. There are the most kinds of morphologies of discrete texture, and the research on it is the most detailed. In the discrete texture, the effects of triangle, rectangle, diamond, hexagon, ellipse, cylinder, sphere, water drop, ring, snowflake and gourd texture on the friction properties are analyzed. As for the geometric parameters of surface texture, this paper discusses that among the geometric parameters, the influence of texture diameter and area share on the friction coefficient is greater than the depth of texture, in which the size of texture has a great influence on the lubrication performance of friction pairs. Too large and too small size are not conducive to the advantage of micro-texture, or even cause negative effects. As for the distribution of surface texture, this paper expounds the influence of different distribution forms of surface texture on the friction properties. The antifriction mechanism of surface texture under different working conditions is summarized under four lubrication conditions of dry friction, boundary lubrication, fluid lubrication and mixed lubrication, and some suggestions on the existing problems of surface texture are put forward. It is expected to provide a reference for the researchers of surface texture. In the future, based on the application of surface texture in traditional manufacturing, surface texture will gradually expand to many new fields. |
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