Aluminum alloy deep cooling variable-thickness rolling process

A technology of variable thickness rolling, aluminum alloy, applied in metal rolling, metal rolling, manufacturing tools, etc., can solve the problems of low strength and toughness of aluminum alloy

Active Publication Date: 2017-12-29
CENT SOUTH UNIV
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  • Claims
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Problems solved by technology

However, the strength and toughness of aluminum alloys are lower than steel

Method used

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  • Aluminum alloy deep cooling variable-thickness rolling process
  • Aluminum alloy deep cooling variable-thickness rolling process

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Embodiment Construction

[0017] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0018] The high temperature toughness of aluminum alloy is good, but the room temperature toughness is poor, but the toughness becomes very good at ultra-low temperature. Cryogenic rolling of aluminum alloy materials can greatly improve the strength and toughness of aluminum alloy components, and variable thickness rolling can be used to prepare variable thickness strips.

[0019] Based on the above principles, such as figure 1 As shown, the cryogenic rolling process of the high-performance aluminum alloy differential thickness plate of the present invention is as follows:

[0020] The first step: the aluminum alloy strip 1 is used as a raw material, and the material thickness of the aluminum alloy strip 1 is 1-5mm.

[0021] Step 2: Process the aluminum alloy strip 1 into a sheet material of a certain size, and the size is adjusted according t...

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Abstract

The invention discloses an aluminum alloy deep cooling variable-thickness rolling process. An aluminum alloy plate strip serves as a raw material, and is machined into a piece-shaped material with a certain size, the material is placed into liquid nitrogen to be cooled, after cooling, deep cooling variable-thickness rolling is carried out, and high-performance aluminum alloy variable-thickness strip is produced. According to the process, ultra-low temperature plastic deformation is used, the strength and the toughness of the aluminum alloy are synchronously improved, at the same time, variable-thickness rolling is used, and a high-strength toughness aluminum alloy thickness difference plate capable of being directly used for car parts can be prepared.

Description

technical field [0001] The invention belongs to the technical field of metal material rolling, and in particular relates to a deep-cold variable-thickness rolling process for aluminum alloys. Background technique [0002] At present, the lightweight of automobiles has attracted widespread attention from the international community, and people are committed to reducing the weight of automobiles through various processes and technologies. Because as the weight of the car decreases, the energy consumption of the car will be greatly reduced. [0003] One of the ways to reduce the weight of automobiles is to replace steel plates with high-strength aluminum alloy materials. Substituting aluminum for steel is an important development path for automobile lightweight. Compared with steel, the density of aluminum alloy is greatly reduced. However, the strength and toughness of aluminum alloys are lower than steel. Contents of the invention [0004] In order to overcome the disadv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02B21B3/00B21B1/22B21B45/02
CPCB21B1/22B21B3/00B21B45/0206B21B45/0242B21B2001/221B21B2003/001B21C37/02
Inventor 喻海良
Owner CENT SOUTH UNIV
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