Manufacturing method of high-strength aluminum alloy bar for fastener

The invention discloses a manufacturing method of a high-strength aluminum alloy bar for a fastener, relates to a manufacturing method of a novel high-strength aluminum alloy bar for a fastener, and aims to solve the problems of insufficient performance, non-uniform structure deformation and poor high-temperature resistance of the high-strength aluminum alloy bar. Through design of alloy components, control of machining deformation, an intermediate annealing process and a matched solid solution aging process, comprehensive performance matching and good microstructure control are achieved, and the problems that a conventional aluminum alloy bar is low in strength, uneven in structure, poor in corrosion resistance and poor in high temperature resistance are solved. And the use requirements of fastener products for aircrafts and the like on high performance can be met. The method is suitable for the field of manufacturing of high-strength aluminum alloy bars for fasteners. 一种紧固件用高强铝合金棒材的制造方法，本发明涉及一种紧固件用新型高强铝合金棒材