Study on Size and Microstructure of Complex Cavity Aluminum Alloy Castings Formed by Pre-Burying Copper Pipe Core

Abstract:

The feasibility of especial technology which complex cavity aluminum alloy castings are formed by corroding pre-burying copper pipe core is discussed by researching on the size and microstructure of cavity formed by corroding pre-burying copper pipe core. The results indicate the size of cavity formed by corroding pre-burying copper pipe core is basically consistent with the original size of the castings, with a dimensional tolerance in permission scope which is about 0.01mm. Meanwhile, the microstructure of cavity wall formed by corroding pre-burying copper pipe core is identical with that of the castings without corrosion. Moreover, because the pre-burying copper pipe core is equal to the chilled iron, bringing cold effect, the crystal grain of cavity wall formed by corroding pre-burying copper pipe core are tinier. Therefore, the technology of using pre-burying copper core to form complex cavity of aluminum alloy casting is entirely feasible.

• Periodical: Advanced Materials Research (Volumes 97-101)
• Pages: 999-1002
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.97-101.999
• Online since: March 2010
• Authors: Qing Song Yan, Huan Yu, Zhi Feng Xu, Chang Chun Cai, Bo Wen Xiong, Yu Hui Zheng
• Keywords: Aluminum Alloy Casting, Copper Pipe Core, Corroding, Microstructure, Size

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