Micro-structure and Air-tightness of Squeeze Casting Motor housing for New Energy Vehicle

被引：1

作者：

Jiang, Y. F. ^{[1
]}

Kang, Z. Q. ^{[1
]}

Jiang, W. F. ^{[1
]}

Wang, K. W. ^{[1
]}

Sha, D. L. ^{[1
]}

Li, M. L. ^{[2
]}

Sung, J. ^{[2
]}

机构：

[1] JiangSu Univ, Sch Mechanicalengn, Zhenjiang 212013, Peoples R China

[2] SuZhou SanJi Foundry Equipment CO LT, Suzhou 215105, Peoples R China

来源：

INTERNATIONAL CONFERENCE ON COMPUTER INFORMATION AND AUTOMATION ENGINEERING | 2018年 / 359卷

关键词：

D O I：

10.1088/1757-899X/359/1/012042

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In order to improve the performance of automobile parts, the influence of squeeze casting process parameters on casting defects, material structure and air-tightness of aluminum alloy motor housing for new energy vehicle was studied. The results show that the density of the castings increases with the increase in pressure and mold temperature. With increase in pouring temperature, it increases first and then decreases. Pressure has the greatest influence on the density of the castings. Under a certain pressure, with moderate increase in casting temperature and mold temperature, the grain growth begins to increase; the dendrites become less, the new alpha-Al grains are spherical and granular, the micro-structure is uniform. Also, with increase in pressure, this effect is more pronounced, the air-tightness of castings improve. In conclusion, when the pressure is 110MPa, pouring temperature is 680 degrees C, mold temperature is 280 degrees C, pressure holding for 30s, and punch speed of 0.1m/s, there is no clear shrinkage in the casting, the structure is uniform, the qualified rate of air-tightness of production reaches 86%, and the performance is excellent.

引用

页数：7