Magnetic collecting device for improving uniformity of deformation of pipe fitting and electromagnetic forming device of magnetic collecting device

Abstract

The invention discloses a magnetic collecting device for improving uniformity of deformation of a pipe fitting and an electromagnetic forming device of the magnetic collecting device. The magnetic collecting device is of an annular structure with a through hole formed in the center, a gap penetrating through the side wall of the magnetic collecting device in the radical direction of the through hole is formed in the magnetic collecting device, one or more seams are further formed in the inner wall, located in the through hole, of the magnetic collector, the seams extend in the axial directionof the through hole, and the seams and the gap are evenly arranged in the circumferential direction of the through hole. The magnetic collecting device is designed to be have multiple seams, the magnetic field force corresponding to the seams is still smaller than that of the area not corresponding to the seams, so that the material has a tendency to flow to the multiple seams. Although the magnetic field force on both sides of the seams is greater than the magnetic field force of the seams, material flow is continuous, the deformation of the material on both sides of the seams drives the deformation of the material of the seams, and thus uniformity of the overall deformation is ensured. Therefore, uniformity of material deformation can be greatly improved by the multi-seam magnetic collecting device.

Description

technical field

[0001] The invention relates to the technical field of material processing and forming, in particular to a magnetic collector and an electromagnetic forming device for improving the deformation uniformity of pipe fittings. Background technique

[0002] Magnet collector is a commonly used auxiliary part in electromagnetic pulse forming, and it is widely used in the forming of plate and tube parts. By changing the structure of the magnetic collector, the magnetic field generated by the coil can be concentrated in a small area of ​​the part to be deformed, so that the magnetic field in the local area of ​​space is greatly strengthened, and the purpose of improving the forming efficiency is achieved.

[0003] For example: In the document "Study on Electromagnetic Pulse Connection Characteristics of Aluminum Alloy and Steel Pipe Fittings", Fan Wei used a pipe fitting magnet collector to realize the connection of aluminum pipe and steel pipe. In the literature "St...

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