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Metal plate component connection and forming composite manufacturing method based on high-speed impact

A technology of high-speed impact and manufacturing method, which is applied in the field of metal plate-like parts connection and forming composite manufacturing to achieve the effects of improving processing efficiency, easy control, and uniform thickness distribution

Active Publication Date: 2019-09-27
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above technical problems and improvement needs of the prior art, the present invention proposes a composite manufacturing method for connecting and forming metal plate parts based on high-speed impact, in which not only the basic idea of ​​using aluminum foil gasification to provide the impact driving force, but also It also ensures that the material properties can be effectively improved under dynamic loading through the mutual cooperation of multiple key process operations, better integration of high-speed impact connection and high-speed impact forming, and especially high-quality forming of local features and joints of workpieces It avoids forming defects such as excessive corner strain, and has the advantages of easy manipulation, high forming efficiency and low processing cost, so it is especially suitable for processing metal components with complex shapes and poor room temperature forming ability.

Method used

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  • Metal plate component connection and forming composite manufacturing method based on high-speed impact
  • Metal plate component connection and forming composite manufacturing method based on high-speed impact
  • Metal plate component connection and forming composite manufacturing method based on high-speed impact

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The 0.5mm thick 5083 aluminum alloy is used as the base plate, and the 2mm thick pure titanium is used as the reinforcing plate to realize the connection and forming compound high-speed manufacturing.

[0044] 1) At room temperature, as attached figure 1 Put the pure titanium 9 on the corresponding mold 10, place the 5083 aluminum alloy 3 at a position 2.5mm above the reinforcing plate 9, and connect the two ends of the 0.05mm thick aluminum foil 8 to the capacitor 6 through the wire 1, and the aluminum foil 8 is passed through the polyurethane The adhesive tape 2 is separated from the fixing block 7 and the substrate 3 respectively;

[0045] 2) As attached figure 2 , the capacitor 6 releases 15KJ of energy, and the high-intensity current passes through the aluminum foil 8 instantaneously in about 8 μs, so that the effective area 14 of the aluminum foil 8 (as attached Figure 6 ) vaporizes, producing about 10 3 ~10 4 The local high pressure of the MPA, under the co...

Embodiment 2

[0050] The 1.5mm thick H62 copper alloy is used as the substrate, and the 3mm thick DP780 steel is used as the reinforcement plate to realize connection and forming compound high-speed manufacturing.

[0051] 1) At room temperature, as attached figure 1 Put the DP780 steel 9 on the corresponding mold 10, place the H62 copper alloy 3 at a position 1mm above the reinforcing plate 9, and connect the two ends of the 0.15mm thick aluminum foil 8 to the capacitor 6 through the wire 1, and the aluminum foil 8 is passed through the polyurethane tape 2 are separated from the fixed block 7 and the base plate 3 respectively;

[0052] 2) As attached figure 2 , the capacitor 6 releases 5KJ of energy, and the high-intensity current passes through the aluminum foil 8 instantaneously in about 12 μs, so that the effective area 14 of the aluminum foil 8 (as attached Figure 6 ) vaporizes, producing about 10 3 ~10 4 The local high pressure of the MPA, under the constraint of the fixed block...

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Abstract

The invention belongs to the relevant field of machining and forming of plate components, and discloses a metal plate component connection and forming composite manufacturing method based on high-speed impact. The method comprises the following steps that a reinforcing plate is placed on a mould, and a substrate is arranged above the reinforcing plate; a circuit loop is provided for the substrate, and an aluminum foil is used as a material source for generating gasification drive at the same time; current flows through the aluminum foil and gasification occurs, and generated local high-pressure air mass drives the substrate to move downwards at a high speed and hit the reinforcing plate; and the reinforcing plate is connected with the substrate at an impact position, and with the continuous impact and final stop of the impact, the reinforcing plate and the substrate are gradually connected and formed into a whole in the mould until the whole composite manufacturing process is completed. The invention also discloses a corresponding metal plate product. Through the method, the forming limit of plate component can be improved, the machining defects such as excessive strain at corners and connection with the mould can be reduced advantageously, and the method has the advantages of less required processes, high forming precision and efficiency, convenience in operation and control, and the like.

Description

technical field [0001] The invention belongs to the field related to the processing and forming of plate components, and more specifically relates to a composite manufacturing method for connecting and forming metal plate components based on high-speed impact. Background technique [0002] With the rapid development of modern industries such as aviation, aerospace, automobiles, electronics, and ships, metal components must not only meet the mechanical requirements, but also meet the requirements of electrical conductivity, thermal conductivity, wear resistance, corrosion resistance, and lightweight. . At the same time, as the engineering structure becomes more and more complex, there are special requirements for the performance of local areas. Therefore, it is difficult for a single material to meet all requirements at the same time, and composite processing of connecting and forming materials with different properties is required. For example, the same or dissimilar metals...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/03
CPCB21D39/031
Inventor 邓磊杜飞王新云金俊松龚攀
Owner HUAZHONG UNIV OF SCI & TECH
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