Residual Stress Forming Mechanism and Control in Aluminum Alloy Casting
Author of the article:HE Jiangang;ZENG Daxin;SHI Qiuyue;LI Fengguang
Author's Workplace：School of Materials Science and Engineering,Hubei University of Automotive Technology,Shiyan 442002,China
Key Words：aluminum alloy casting residual stress forming mechanism stress measurement stress control
Abstract：Cast aluminum alloy is widely used in industry.The residual stress in the casting directly affects its dimensional stability and service performance.The research on the formation mechanism of residual stress in aluminum alloy castings as well as the detection and control methods is of great significance to improve the quality and performance of the castings.In this paper,the formation mechanism of residual stress in the casting and heat treatment process of aluminum alloy castings is described,the detection technology of residual stress in aluminum alloy castings is summarized,the ways and methods of reducing residual stress in aluminum alloy castings are analyzed,and the research and development direction of residual stress control is pointed out.
