Electromagnetic pulse hole-flanging and forming device for thick plate or thick arc-shaped piece

Abstract

The invention belongs to the field of plastic forming of materials, and discloses an electromagnetic pulse hole-flanging and forming device for a thick plate or a thick arc-shaped piece. The forming device for the thick plate includes a coil and a field shaper (103) on one side of the coil, and the field shaper (103) is disc-shaped and has two disc surfaces with different surface areas. The surface with the larger surface area is the A surface, the surface with the smaller surface area is the B surface, the A surface is closer to the coil, and the B surface is used for being close to a workpiece to be formed. By using the area difference, greater current density can be generated at the end, near the B surface, of the field shaper (103), and the workpiece to be formed is subjected to greater electromagnetic force, so that electromagnetic pulse hole-flanging and forming are facilitated. According to the electromagnetic pulse hole-flanging and forming device, the overall structure designand the like of the device are improved, the field shaper is added between the coil and the plate, through cooperation with the multilayer coil, particularly the design of the A surface and B surfaceof the field shaper with the difference in the surface areas, the electromagnetic force is concentrated on the forming area corresponding to the B surface of the field shaper, and a good forming effect can be achieved.

Description

technical field [0001] The invention belongs to the technical field of plastic forming of materials, and more specifically, relates to an electromagnetic pulse hole-turning forming device for thick plate parts or thick arc-shaped parts. The coil solves the problem that the current electromagnetic forming coil cannot withstand high-voltage and high-energy discharge conditions, and makes the application of electromagnetic forming in turning holes in thick plate parts more mature. Background technique [0002] In order to meet the needs of lightweight structures and materials, reduce energy consumption and environmental pollution, aluminum alloys with lower density and higher specific strength are increasingly used in the automotive and aerospace fields. However, aluminum alloys have problems such as low forming limit and serious springback, which seriously restrict the development of aluminum alloys. Electromagnetic forming is a forming processing method that uses Lorentz for...

AI Technical Summary

Problems solved by technology

The invention solves the problem that the current electromagnetic forming coil cannot withstand high-voltage and high-energy discharge conditions, and makes the application of electromagnetic forming in turning holes in thick plate parts more mature

Images