Aluminum alloy strip for continuous deep drawing of small hardware stamping part and preparation method of aluminum alloy strip

Abstract

The invention relates to an aluminum alloy strip for continuous deep drawing of a small hardware stamping part and a preparation method of the aluminum alloy strip. The aluminum alloy strip comprisesthe following components by mass percentage: 0.5-3.5% of Mg, 0.05-1.0% of X, 0.05-0.5% of Ti and the balance of Al and unavoidable impurities, wherein the total amount of impurity elements is less than 0.08%; and X is a combination of any two or three of Cu, Y, V, Ce, La and Be. The aluminum alloy strip with the thickness being less than 0.35mm is prepared by reasonable selection and optimizationdesign of alloying elements, secondary smelting, periodical mechanical vibration with a mold in an alloy solidification process, and subsequent calendering. The strip has excellent plasticity and deepdrawing properties, can meet requirements of the continuous deep drawing of the small hardware stamping part and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal processing, in particular to an aluminum alloy strip for continuous deep drawing processing of small metal stamping parts and a preparation method thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. Due to the advantages of small specific gravity, high strength, good plasticity, excellent stamping performance, corrosion resistance and easy coloring, aluminum alloys are widely used in the field of stamping and forming. [0003] Stamping is a high-efficiency processing technology that can directly form rolled plates and strips with excellent performance. It has great market advantages and development prospects. Deep drawing refers to the metal plastic processing method in which metal sheets ar...

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Problems solved by technology

In addition, the current research on the deep drawing performance of aluminum alloys is mostly concentrated on aluminum alloy strips with a thickness of more than 0.5mm, and there are few studies on aluminum alloy strips with a thickness of less than 0.35mm.

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