Production process of aluminum alloy medium plate

Abstract

The invention relates to the field of metal processing, in particular to a production process of an aluminum alloy medium plate. The production process comprises the following steps that a, a metal material and an auxiliary material are put into a heating device for melting and hardening and tempering, and the furnace temperature is 1300-1600K; b, molten metal obtained in the step a is poured intoa casting mold, and solidifying is conducted to obtain a plate-shaped metal part blank; c, the metal part blank obtained in the step b is cut into a regular plate-shaped metal part; d, the metal partobtained in the step c is milled to obtain a plate-shaped metal part with a flat surface; and e, the plate-shaped metal part obtained in the step d is put into a heating device, heating is conductedto the recrystallization temperature or above, and hot rolling is conducted.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a production process of an aluminum alloy medium-thick plate. Background technique [0002] At present, there are two main heat treatment processes for aluminum alloy plates: one is quenching + leveling + aging, and the other is quenching + leveling + cold rolling 10% + multiple leveling + aging. After testing, the residual stress on the surface of the aluminum alloy plate after the first heat treatment process is -147Mpa ± 10Mpa, and the residual stress on the surface of the aluminum alloy plate after the latter heat treatment process is -84Mpa ± 10Mpa. Effectively reduce the surface residual stress left by the aluminum alloy during machining, which greatly affects the surface properties and service life of the aluminum alloy sheet. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and prov...

AI Technical Summary

Problems solved by technology

After testing, the residual stress on the surface of the aluminum alloy plate after the first heat treatment process is -147Mpa ± 10Mpa, and the residual stress on the surface of the aluminum alloy plate after the latter heat treatment process is -84Mpa ± 10Mpa. Effectively reduce the surface residual stress left by aluminum alloy during mechanical processing, which greatly affects the surface properties and service life of aluminum alloy sheets, etc.