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Preparation method of high-flux bulk material based on friction stir technology

A block material and friction stir technology, which is applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve the problems of limited material density and achieve the effects of large sample size, good sample contrast, and wide application range

Active Publication Date: 2020-06-26
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the density of the material obtained by this method is limited, and its performance is different from that of the traditional melting method.

Method used

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  • Preparation method of high-flux bulk material based on friction stir technology
  • Preparation method of high-flux bulk material based on friction stir technology
  • Preparation method of high-flux bulk material based on friction stir technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 provides a high-throughput preparation method of a magnesium-aluminum-zinc ternary alloy:

[0037] (1) Two ternary alloy plates whose components are Mg-3%Al-1%Zn dissimilar plate 1 and Mg-9%Al-1%Zn dissimilar plate 3 are used as the experimental base materials, dissimilar plate 1 and dissimilar The size of the plate 3 is 50mm*100mm*6mm, and the two ternary alloy plates are processed according to the preparation work described in the process steps: use acetone as the cleaning agent to clean the plates: clean for 3 minutes under the action of ultrasonic waves, remove Dust and oil stains on the surface of the parent material, the cleaned base material is dried for later use; use 240# to 2000# sandpaper to grind step by step, and the contact surface is polished to make it easier for the two materials to fit closer together, so as to ensure the prepared sample At the same time, the oxide film on the surface of the material is removed during this process, which f...

Embodiment 2

[0042] Example 2 provides a high-throughput preparation method of an Al-SiC composite material. Al-based composite materials with content of 0% and 40% respectively are used as the base material, and the plate size is: 50mm*100mm*6mm. The alloy plate is processed according to the preparation work described in the process steps. After cleaning and polishing, it is placed on the welding platform fixed.

[0043] Use a threaded stirring needle with a needle length of 5.4mm and a diameter of 8mm for processing. The relative position of the stirring needle and the two plates is as follows Figure 5 As shown, at the starting position at 6, the stirring pin is completely on the Al alloy side and is tangent to the seam line; similarly at the end position 7, the stirring pin is completely on the Al-40%SiC side. The welding length L is 40mm. The rotating speed during welding is 600rpm, and the welding speed is 100mm / min. Processing direction such as Figure 5 As shown, changing the d...

Embodiment 3

[0046] Example 3 provides a high-throughput method for preparing an aluminum alloy containing copper, lithium, and magnesium. Al-Cu (special-shaped plate 3), Al-Mg (special-shaped plate 1) and wedge-shaped Al-Li (special-shaped plate 1) alloy plates were used as the experimental base material, and the alloy plates were processed according to the preparation work described in the process steps, cleaned After grinding, place it on the welding platform and fix it.

[0047] Use a threaded stirring needle with a needle length of 2.8mm and a diameter of 5mm for processing. The relative position of the stirring needle and the two plates is as follows Figure 6 As shown, at the beginning, the stirring pin is completely located on the special-shaped plate 3 (Al-Cu alloy) side, and is tangent to the seam line; at the end, the stirring head is completely located on the special-shaped plate 1 (Al-Mg) side. The welding length L is 40mm. The rotating speed during welding is 1200rpm, and t...

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Abstract

The invention relates to a preparation method of a high-flux bulk material based on a friction stir technology. The preparation method comprises following steps: (1), determining a research target, selecting multiple boards with different components and the same thickness serving as base materials for pretreatment, and clamping and fixing the treated base materials on a processing platform; and (2), setting friction stir processing parameters, completing processing in a certain processing direction, and realizing continuous change of researched components in an obtained bulk material in the processing direction. Compared with the prior art, the components in the prepared material are in gradient change, and samples of the corresponding components can be cut off according to calculation; the preparation process has the advantages of being low in energy consumption, green and environmentally friendly; and experimental equipment does not need to control conditions such as vacuum degree, magnetic field and temperature, the method is simple and easy, and size and performance of the prepared bulk material can be adjusted by the subsequent process.

Description

technical field [0001] The invention relates to the preparation technology of metal block materials, in particular to the high-throughput preparation technology of metal block materials. Background technique [0002] With the advancement of science and technology, people have put forward more and more stringent challenges and requirements for materials, and the work of developing new materials has also become the focus of attention. However, the traditional material development method based on "trial and error one by one" has exposed great limitations in today's scientific research work. On the one hand, the process of preparing samples one by one is not only time-consuming, but also wastes a lot of material resources; On the one hand, when faced with the research and development of new materials containing multiple elements such as high-entropy alloys, amorphous alloys, and new superalloys, the workload required to continue using traditional experimental methods is huge, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12B23K20/24B23K20/26
CPCB23K20/122B23K20/123B23K20/24B23K20/26
Inventor 肖亮陈科张青松单爱党王敏张澜庭华学明
Owner SHANGHAI JIAO TONG UNIV
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