Research Progresses and Suggestions of Manufacturing Technologies of Engine Bearing Bushes

4th International Conference on Mechanical, Materials and Manufacturing

材料科学;机械制造

Cao, J.^1 ; Yin, Z.W.^1 ; Li, H.L.^1 ; Gao, G.Y.^1

School of Mechanical Engineering, Shanghai JiaoTong University, Shanghai, China^1

关键词: Coating thickness;    Engine bearing;    Frictional coefficients;    Layer thickness;    Low-frictional materials;    Manufacturing technologies;    Production efficiency;    Whole machine;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/272/1/012005/pdf
DOI  :  10.1088/1757-899X/272/1/012005

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Bearing bush is a key part of diesel engine, and its performance directly influences the life of whole machine. Several manufacturing technologies of bearing bush such as centrifugal casting, sintering, electroplating and magnetron sputtering have been overviewed. Their bond strength, porosity, production efficient, layer thickness, frictional coefficient and corresponding materials analyzed and compared. Results show that the porosity and oxidation of sintering and centrifugal casting are higher than that of other two methods. However, the production efficiency and coating thickness are better than that of electroplating and magnetron sputtering. Based on above comparisons and discussions, the improvements of all manufacturing technologies are suggested and supersonic cold spraying is suggested. It is proved that cold spraying technology is the best choice in the future with the developing of low frictional materials.