Magnetorheological porous soft mold and plate forming device

A magnetorheological and soft mold technology, applied in the field of magnetorheological porous soft molds and sheet metal forming devices, can solve problems such as inhomogeneous forming, increase or decrease the inflow of materials, large adjustable range, and improve deformation. The effect of uniformity

Active Publication Date: 2021-10-19
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a magnetorheological porous soft mold to solve the problem that the elastic modulus of the magnetorheological elastomer in the prior art is the same everywhere, and

Method used

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  • Magnetorheological porous soft mold and plate forming device
  • Magnetorheological porous soft mold and plate forming device
  • Magnetorheological porous soft mold and plate forming device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0062] Example 1 of the sheet forming apparatus of the present invention:

[0063] like figure 1 As shown, the sheet forming means includes a concave mode 3, a coil 4, a magnetore porous soft mold 6, a frame 7, and a plunger 8, and the concave mode 3 is above the holder frame 7, and the recess 3 and theft frame 7 are pair. Set so that the mold cavity of the concave mode 3 and the inner cavity of the frame 7 are arranged, and the slab 5 is positioned between the concave mold 3 and theft frame 7; the magneto-flow multi-hole soft mold 6 and the plunger The head of the 8 is located in the inner cavity of the frame 7, and the coil 4 is set on the outer wall of the frame 7 and the recess 3, and the coil 4 is connected to the DC power supply 2 through the current regulator 1. Wherein, the frame 7 is a ring structure, and the coil 4 is a copper coil.

[0064] In this embodiment, the magnetic flow multi-hole soft mold 6 includes an elastic matrix and magnetic particles 10 having a pore 11,...

Example Embodiment

[0083] Example 2 of the sheet forming apparatus of the present invention:

[0084] The difference from the first embodiment is that the dimensions of each of the apertures 11 in the left forming segment are the same, and the dimensions of each of the apertures 11 in the right forming segment are the same, and the porosity within the left forming segment is greater than the right. The porosity in the forming section. In this embodiment, if Figure 5 As shown, the dimensions of each pore in the left forming section are not identical, and the dimensions of each pore in the right forming segment are not identical, and as long as the porosity in the left forming segment is greater than the porosity in the right forming segment.

Example Embodiment

[0085] Example 3 of the sheet forming apparatus of the present invention:

[0086]The difference from the first embodiment is that the aperture 11 is provided in the left-form section and the right forming section, and the porosity in the left forming segment is greater than the porosity in the right forming segment, so that the left The elastic modulus of the forming section is smaller than the elastic modulus of the right form. In this embodiment, there is a pore in the left-form section, and a pore is not provided in the right forming section to make the elastic modulus of the left forming section less than the elastic modulus of the right form.

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Abstract

The invention relates to a magnetorheological porous soft mold and a plate forming device. The magnetorheological porous soft mold comprises an elastic base body with pores; and magnetic particles integrally formed in the elastic base body, wherein the magnetic particles are distributed in the elastic base body in a dispersed mode and located outside the pores. The elastic base body comprises at least two forming sections; all the forming sections are internally provided with the pores, and the porosity of at least one forming section is larger than that of the other forming sections, so that the elastic modulus of the forming sections with the large porosity is smaller than that of the forming sections with the small porosity; or at least one forming section is internally provided with the pores and at least one forming section is not internally provided with the pores, so that the elastic modulus of the forming sections with the pores is smaller than that of the forming sections without the pores. Through the design of the structure, when a blank is in complete contact with a special-shaped female mold, the stress of the whole blank is uniform, and the situation that the blank is broken due to the fact that the forming force is too large when a deeper part is formed is avoided.

Description

technical field [0001] The invention relates to a magnetorheological porous soft mold and a plate forming device. Background technique [0002] Special-shaped thin-walled shell parts are a type of plate parts commonly used in fields such as aviation, aerospace, and automobiles that have an urgent need for lightweight equipment. At present, the commonly used methods for processing such parts include rigid convex and concave die stamping forming, soft die forming and so on. Since the forming method of the soft mold is relatively simple compared with the stamping forming method of the rigid punch and die, and can avoid the problem of cracking defects in the forming of the rigid punch and die, it is widely used at present. [0003] The Chinese invention patent with the authorized notification number CN103273644B discloses a sheet material soft mold forming device based on magnetorheological elastomer, including plunger, coil, container frame, magnetorheological elastomer and di...

Claims

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Application Information

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IPC IPC(8): B21D26/14
CPCB21D26/14Y02P10/25
Inventor 相楠田轩赫孙依露李银柱皇涛陈拂晓
Owner HENAN UNIV OF SCI & TECH
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