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Electromagnetic force driven molded sheet forming method and equipment

A sheet metal forming and driving die technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., to achieve uniform sheet deformation, expand the range of options, and reduce friction

Inactive Publication Date: 2011-11-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a large plastic deformation method and forming equipment capable of producing massive plate-shaped ultrafine-grained materials, using electromagnetic force to drive steel molds to realize high-speed forming of metal sheets, so as to overcome the shortcomings of the existing molding deformation technology

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  • Electromagnetic force driven molded sheet forming method and equipment
  • Electromagnetic force driven molded sheet forming method and equipment
  • Electromagnetic force driven molded sheet forming method and equipment

Examples

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Embodiment Construction

[0023] Combine below figure 1 Embodiments will be described in detail. The electromagnetic force-driven compression molding equipment for block plate ultrafine-grained materials in this embodiment includes a bending die, a flattening die, a coil support frame, upper and lower fixing plates, a coil, a driving plate, and fastening bolts.

[0024] The lower die 2 of the bending die and the upper die 4 of the bending die are installed on the lower fixed plate 1, and the lower die and the upper die of the bending die are toothed and connected (such as figure 2 As shown), between the upper and lower molds is the workpiece slab 3, and the upper mold is provided with a driving plate 8, and the surface layer of the driving plate 8 can generate electromagnetic induction eddy currents, and the coil 7 is installed on the driving plate. The coil support frame 5, the lead wire of the coil 7 is connected to the high-voltage energy storage capacitor group of the electromagnetic forming equi...

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Abstract

The invention discloses a method and equipment for forming a molded sheet material driven by electromagnetic force, which relates to the molding of a block plate-like ultra-fine grain material driven by electromagnetic force. Using electromagnetic force to drive the steel mold to achieve high-speed and severe deformation of the plate, thereby solving the problem that the effect of grain refinement is not obvious due to the limitation of material types and pressing passes when forming metal sheets based on conventional plastic deformation methods such as stamping forming. Its technology The feature is that the processed slab is put into the bending die for bending; the bent slab is leveled with the flattening die. Then, the slab is rotated 180° in the horizontal direction, so that the part of the sample that has not been sheared during the first two molding deformation processes enters the position of shear deformation, and then the bending is performed; Blanks are leveled. After 4 times of molding deformation, ultra-fine-grained slabs can be obtained without changing the dimensions of the slab. The invention effectively integrates the advantages of electromagnetic forming and molding deformation, and can prepare large-volume ultra-fine-grained plates of various metal materials.

Description

technical field [0001] The invention belongs to the technical field of ultrafine-grained metal material forming and processing, and in particular relates to a large plastic deformation method and forming equipment for preparing block plate-like ultrafine-grained materials driven by electromagnetic force. Background technique [0002] With the development of modern industry and science and technology, it has become an urgent problem to be solved in the manufacturing industry to continuously improve the comprehensive performance of steel and non-ferrous metal materials and reduce the self-weight of structural parts. In recent years, ultrafine-grained (including submicron and nanoscale) metallic materials—due to a series of excellent physical, mechanical and forming properties different from traditional materials—have attracted people's close attention. The preparation methods of large-volume ultrafine-grained metal materials can be mainly divided into two categories: (1) densi...

Claims

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Application Information

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IPC IPC(8): B21D26/14B21D37/10
Inventor 于海平李春峰吴远军
Owner HARBIN INST OF TECH
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