Preparation method of aluminum alloy wire for metal 3D printing

Abstract

The invention relates to a preparation method of an aluminum alloy wire for metal 3D printing. The method particularly aims at a 7075 aluminum alloy wire for metal 3D printing. The preparation method of the wire comprises the steps of alloy dosing, pressing forming, vacuum induction furnace smelting, alloy pouring, forging, rotary forging, wire drawing, continuous electrolytic washing and heat treatment straightening. The surface quality of the aluminum alloy wire obtained by the adoption of the method is improved remarkably, in the 3D printing process, the wire feeding speed is stable, and strength and mobility are good.

Description

technical field

[0001] The invention relates to the field of metal manufacturing, in particular to a method for preparing an aluminum alloy wire for metal 3D printing. Background technique

[0002] Aluminum alloy is an alloy based on aluminum and added a certain amount of copper, magnesium, zinc, silicon and other trace elements. It has low density, high strength, excellent electrical conductivity and corrosion resistance, and is widely used in aerospace, mechanical ships , automobiles and other fields. Among them, 7075 aluminum alloy, as a cold-processed forged hard aluminum alloy, has good mechanical properties and mechanical properties, and is used in the manufacture of complex structural parts of aircraft and lightweight parts of automobiles.

[0003] At present, metal 3D printing technology, as the most cutting-edge and most potential technology in the entire 3D printing system, is an important development direction of advanced manufacturing technology. Aluminum alloy...

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