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A partitioned electromagnetic composite forming method and forming device for a large integral wall panel

An integral wallboard and electromagnetic composite technology, which is applied in the field of high-speed forming, can solve the problems of large part size, large deformation, high reinforcement ribs, etc., and achieve the effects of improving service life, reducing deformation resistance, and eliminating elastic deformation

Active Publication Date: 2020-07-31
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, large integral wall panels have the characteristics of large part size, large deformation, large thickness and high ribs, so the energy of the electromagnetic forming equipment and the strength and size of the coil are extremely high.

Method used

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  • A partitioned electromagnetic composite forming method and forming device for a large integral wall panel
  • A partitioned electromagnetic composite forming method and forming device for a large integral wall panel
  • A partitioned electromagnetic composite forming method and forming device for a large integral wall panel

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Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 as well as Figure 4 to Figure 7 As shown, the first embodiment of the partition electromagnetic composite forming method of the large integral wall panel of the present invention comprises the following steps:

[0040] S1: Carry out roll bending pre-forming on sheet material 1;

[0041] S2: setting the forming mold 2, and placing the preformed sheet 1 on the forming mold 2;

[0042] S3: Clamp the sheet 1 and the forming die 2;

[0043] S4: setting the sheet material 1 along its deformation surface with a plurality of areas to be deformed;

[0044] S5: From the clamping area of ​​the sheet material 1, apply electromagnetic force to each area to be deformed laterally, so that the sheet material 1 is pressed to the forming die 2 until all the areas to be deformed are formed. When the forming of each area to be deformed is completed, the This zone is clamped with the forming die 2;

[0045] S6: Unload all clamping force without springback of sheet 1. ...

Embodiment 2

[0049] Such as figure 1 and figure 2 As shown, the second embodiment of the partitioned electromagnetic composite forming method of the large integral wall panel of the present invention, the forming method is basically the same as that of Embodiment 1, the only difference is that in this embodiment, in step S1, the panel is first 1. Carry out spaced grooving to form reinforcing ribs 11 on one side of the sheet material 1. Arranged in this way, the parts can be formed with reinforcing ribs 11, which improves the overall strength of the parts.

[0050] In this embodiment, the elastic filler 3 is filled in the slots formed between the reinforcing ribs 11 , and the elastic filler 3 is in contact with the molding die 2 in step S2 . When the arc punch is used as the forming die 2, the elastic filler 3 is in contact with the forming die 2, and is suitable for parts in which the ribs 11 are arranged inside the sheet material 1.

Embodiment 3

[0052] Such as figure 1 and image 3 As shown, the third embodiment of the partition electromagnetic composite forming method of the large integral wallboard of the present invention, the forming method is basically the same as that of Embodiment 2, the only difference is that: filling The elastic filler 3, in step S2, the elastic filler 3 is away from the forming die 2. When the arc-shaped punch is used as the forming die 2, the elastic filler 3 is far away from the forming die 2, and is suitable for parts in which the ribs 11 are arranged on the outside of the sheet material 1.

[0053] Device embodiment 1

[0054] Figure 4 to Figure 7 It shows the first embodiment of the partition electromagnetic composite forming device for large integral wall panels of the present invention, including the rolling group 4, the forming die 2 and the pressing block 5, and the sheet material 1 is pre-formed after the rolling group 4 completes the rolling and bending Placed on the forming...

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Abstract

The invention discloses a partition electromagnetic compound forming method and device of a large integral panel. The method comprises the steps that S1, a board is subjected to roll bending preforming; S2, a forming mold is set, and the board is placed on the forming mold; S3, the board and the forming mold are clamped; S4, the board is provided with multiple to-deforming areas; S5, electromagnetic force is exerted to the to-deforming areas in batches from the board clamping area to the side direction, the board is extruded towards the forming mold until all the to-deforming areas are formed,and when each to-deforming area is formed, the area and the forming mold are clamped; and S6, under the condition that the board does not spring back, clamping force is unloaded. The device comprisesa roll bending set, the forming mold and a pressing block; the board is subjected to roll bending preforming on the roll bending set and then is placed on the forming mold and is clamped through thepressing block, and multiple thrust coils used for exerting electromagnetic force to the board in batches are arranged above the board. The device has the advantages of being easy and convenient to operate, high in forming precision, and capable of prolonging the part service life.

Description

technical field [0001] The invention mainly relates to the technical field of high-speed forming of material plastic processing, and in particular to a method and a forming device of a partitioned electromagnetic composite forming of a large integral wall plate. Background technique [0002] The integral wall panel is an integral structural load-bearing member made of a whole slab. It is a structural member that integrates structural elements such as skins, long stringers, and stiffeners in the traditional wall panel structure. Therefore, compared with the prefabricated riveted structure or welded structure wall panels, the integral wall panels can reduce the time and labor intensity of connection and assembly, and can also achieve equal strength design of parts, enhance structural strength, improve structural efficiency and reduce structural quality. With high reliability and increased load capacity, it is widely used in aviation, aerospace, rail transportation and other fi...

Claims

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Application Information

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IPC IPC(8): B21D35/00B21D5/14B21D26/14
Inventor 崔晓辉杜志浩喻海良肖昂
Owner CENT SOUTH UNIV
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