A method for preparing multi-layer metal composite materials by high temperature torsion

A composite material and multi-layer metal technology, which is applied in the high-temperature torsion preparation of multi-layer metal composite materials and new multi-layer metal material composite technology, can solve the problems of deformation instability, uneven deformation of metal composite materials, and short deformation time.

Active Publication Date: 2022-03-11
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to very uneven deformation of the entire metal composite material and large interfacial stress, so the yield in the forming process is not high, and deformation instability, cracking, etc. are prone to occur; in addition, in the process of rolling compounding and extrusion compounding, The time for the overall deformation of the component is short, and the joint action time of stress and heat on the component is not long. The interface bonding between metal components is generally based on simple mechanical occlusal, and the interface bonding between components is relatively weak.

Method used

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  • A method for preparing multi-layer metal composite materials by high temperature torsion
  • A method for preparing multi-layer metal composite materials by high temperature torsion
  • A method for preparing multi-layer metal composite materials by high temperature torsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 1. Cut the 1060 aluminum alloy plate and the 304 stainless steel plate with a thickness of 3mm into torsion samples in the shape of Figure 2(a) by wire cutting;

[0065] 2. Place the cut sample on the grinder to remove the oxide layer on the surface, exposing the smooth metal layer, and then clean the polished plate with alcohol and dry it;

[0066] 3. Alternately stack two 1060 aluminum alloy plates and one 304 stainless steel plate of 3mm after surface treatment, and place the 304 stainless steel plate on the center layer;

[0067] 4. Fix the stacked sample into the fixture, and then install the fixture with the sample on the torsion testing machine (such as Figure 4b ), and then install the heating furnace (such as Figure 4c ), heat the sample, and when the temperature of the heating furnace reaches the specified temperature of 500°C, carry out the heat preservation treatment for 5 minutes;

[0068] 5. The stacked samples after heat preservation treatment were tw...

example 2

[0081] 1. Cut the 1060 aluminum alloy plate and the 304 stainless steel plate with a thickness of 3 mm into the sample in the shape of Figure 2 (a) by wire cutting;

[0082] 2. Place the cut sample on the grinder to remove the oxide layer on the surface, exposing the smooth metal layer, and then clean the polished plate with alcohol and dry it;

[0083] 3. Alternately stack two 1060 aluminum alloy plates and one 304 stainless steel plate of 3mm after surface treatment, and place the 304 stainless steel plate on the center layer;

[0084] 4. Fix the stacked sample into the fixture, then install the fixture with the sample on the torsion testing machine (as shown in Figure 4(b)), and then install the heating furnace (as shown in Figure 4(c)), and test the sample Carry out heat treatment, when the temperature of the heating furnace reaches the specified temperature of 200°C, 300°C, and 500°C respectively, carry out heat preservation treatment for 5 minutes;

[0085] 5. Conduct t...

Embodiment 3

[0091] 1. Process the 1060 aluminum alloy plate and 304 stainless steel plate with a thickness of 1.5mm into a sample in the shape of Figure 2(a);

[0092] 2. Place the cut sample on a belt grinder to remove the oxide layer on the surface, exposing the smooth metal layer, and then clean the polished plate with alcohol;

[0093] 3. Stack the surface-treated 1060 aluminum alloy plates and 304 stainless steel plates alternately;

[0094] 4. Fix the stacked sample into the fixture, and then install the fixture with the sample on the torsion testing machine (such as Figure 4b ), and then install the heating furnace (such as Figure 4c ), heat treatment is performed on the sample, and when the temperature of the heating furnace reaches the specified temperature of 500°C, heat preservation treatment is carried out for 5 minutes;

[0095] 5. The stacked samples after heat preservation treatment were twisted 1080° and 1440° respectively at a speed of 60r / min to obtain a 1060 aluminu...

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Abstract

The invention relates to a method for preparing a multilayer metal composite material by twisting at high temperature. The present invention first selects metal A and metal B with different deformation resistance, and alternately stacks metal A and metal B, wherein, the metal in the center layer is metal B with higher deformation resistance, and the starting layer and termination layer of the stacked sample are both For metal A with low deformation resistance, the thickness of metal A and metal B is controlled at 1.5-3mm; then the sample is placed on a torsion testing machine equipped with a heating furnace, and the sample is heated. When the temperature reaches the set value , after 5-15 minutes of heat preservation, the stacked sample is twisted 180-2160° at a speed of 30-120 r / min. The invention has reasonable design, simple and controllable preparation process, high composite yield, high tensile height, high elongation and excellent composite interface bonding of the obtained composite material.

Description

technical field [0001] The invention relates to a novel multilayer metal material composite process, specifically a method for preparing a multilayer metal composite material by high-temperature twisting, and belongs to the technical field of multilayer metal material preparation. Background technique [0002] With the continuous development and progress of modern industry and science and technology, metal materials made of a single metal or alloy are becoming more and more difficult to meet the requirements of extreme environments due to the limitations of the inherent properties of the material itself. Therefore, new metal composite materials It is getting more and more attention from all walks of life. Metal composite materials refer to the combination of two or more metals into a multi-component metal material through physical or chemical methods. The material not only has the excellent performance of a single component metal, but also has the excellent performance char...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D11/14B21D39/03
CPCB21D11/14B21D39/031
Inventor 陈宇强张浩刘文辉宋宇峰刘阳潘素平
Owner HUNAN UNIV OF SCI & TECH
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