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Uniform-pressure electromagnetic forming device, uniform-pressure coil and obtaining method thereof

An acquisition method and electromagnetic forming technology, applied in the direction of coil, coil manufacturing, circuit, etc., can solve the problem of low coil forming efficiency, and achieve the effect of saving space, reducing skin effect, and flexible structure

Active Publication Date: 2017-06-09
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a uniform pressure electromagnetic forming device, which aims to solve the problem of low coil forming efficiency in the prior art

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  • Uniform-pressure electromagnetic forming device, uniform-pressure coil and obtaining method thereof
  • Uniform-pressure electromagnetic forming device, uniform-pressure coil and obtaining method thereof
  • Uniform-pressure electromagnetic forming device, uniform-pressure coil and obtaining method thereof

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] In view of the above problems, the present invention provides a method for winding uniform pressure coils with high strength, aiming to solve the problems of low coil current density, low forming efficiency, complicated coil processing and long processing time in the prior art question.

[0030] In the present invention, in order to improve the forming efficiency, instead of using copper block cutting to obtain uniform pressure coils, thinner red copper wires (single glass filament wrapped polyimide film wrapped flat copper wires) are selected to be wound to form multi-layer multi-turn coils...

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Abstract

The invention provides a uniform-pressure electromagnetic forming device, a uniform-pressure coil and an obtaining method thereof. The uniform-pressure electromagnetic forming device comprises a conductive channel, a coil and a workpiece. The U-shaped conductive channel is formed in an upper-portion surrounding coil of the coil, the workpiece is arranged below the coil, and the workpiece and the conductive channel form a current loop. The coil comprises a lead, an epoxy plate and a reinforcing material. A framework composed of the epoxy plate provides supporting for the lead. The reinforcing material is arranged on the outer side of the lead to serve as an outer reinforcing layer and used for providing enough strength. During work, eddy current is sensed in the workpiece and the conductive channel due to the influence of changing current in the coils, and the current loop is formed. Due to the fact the coil is formed by winding multiple layers and turns of thinner red copper leads, an electromagnetic force exerted in the workpiece is large, and the forming efficiency is higher. For ensuring the strength of the coil, the reinforcing material is wound and reinforced in the coil lead winding direction and the winding direction perpendicular to the lead respectively, and high-strength and efficient uniform-pressure electromagnetic forming is achieved.

Description

technical field [0001] The invention belongs to the technical field of metal forming and manufacturing, and more specifically relates to a uniform pressure electromagnetic forming device, a uniform pressure coil and a method for obtaining the same. Background technique [0002] Electromagnetic forming is a high-speed deformation caused by the interaction between the changing magnetic field and the induced eddy current in the metal material, resulting in the instantaneous electromagnetic impact force. As a high-energy and high-speed forming technology, electromagnetic forming is improving the forming and manufacturing of aluminum alloy and other light alloy materials. There is great potential in breaking through some key technological bottlenecks. In electromagnetic forming, planar helical coils are generally used for flat plate electromagnetic forming, but the electromagnetic force generated by the planar helical coils on the workpiece is unevenly distributed, which restrict...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D26/14H01F5/00H01F41/04
CPCB21D26/14H01F5/00H01F41/04
Inventor 韩小涛李章哲曹全梁谌祺李亮
Owner HUAZHONG UNIV OF SCI & TECH
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