Precision casting forming technology for high-strength aluminum alloy of large thin-walled wing body fusion special-shaped cabin shell

Abstract

The embodiment of the invention discloses a precision casting forming technology for a high-strength aluminum alloy of a large thin-walled wing body fusion special-shaped cabin shell. The technology comprises the following steps of casting a ZL205A high-strength aluminum alloy large thin-walled mesh rib wing body fusion cabin shell through an integral precision sand casting molding process; performing heat treatment on a large thin-walled aluminum alloy special-shaped cabin shell and controlling a deformation amount by adjusting parameters in a heat treatment process to form a high-performancecasting after the heat treatment; and performing numerical control machining on the casting which is subjected to the heat treatment, and controlling the deformation amount through integral surrounding layered cutting cycle machining, three-dimensional photographing scanning, datum transforming and the like in a numerical control machining process, so that precision machining deformation controlof a large thin-walled weakly rigid special-shaped complex cabin product is completed. Through the technology, series of key technical problems that the conventional aluminum alloy casting forming process cannot realize ZL205A high-strength aluminum alloy precision casting and the heat treatment of a large thin-walled weakly rigid mesh rib special-shaped cabin body, and the machining deformation is difficult to control are solved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of precision casting molding technology for large-scale thin-walled high-strength aluminum alloy special-shaped cabin shells, and specifically relates to a precision sand casting molding process for large-scale thin-walled high-strength aluminum alloy ZL205A wing body fusion special-shaped cabin shells, high-strength cast aluminum Alloy heat treatment technology, precision machining and deformation control technology for large thin-walled and weakly rigid tank shells, three-dimensional camera scanning detection technology for large thin-walled special-shaped cabins, etc. Background technique [0002] In the field of aerospace equipment, the casting and molding process of high-strength aluminum alloy for large-scale thin-walled grid rib special-shaped cabin directly affects the comprehensive performance of aerospace vehicles and other products, thus having a key impact on the comprehe...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a high-strength aluminum alloy precision casting molding technology for large-scale thin-walled wing body fusion with special-shaped cabin shells, to solve or partially solve the technical problems that the traditional high-strength aluminum alloy casting molding process cannot be realized or is difficult to achieve.

Images