Electromagnetic forming device and method based on ultrasonic assisting
An electromagnetic forming and ultrasonic-assisted technology, applied in the field of metal forming, can solve the problems of limiting the application potential of electromagnetic forming technology, hindering the industrial application process of electromagnetic forming technology, increasing the complexity of the system and the cost of forming, so as to improve the forming performance and Effect of forming limit, improving forming quality and optimizing forming process
Active Publication Date: 2020-10-09
XIAMEN UNIV
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Problems solved by technology
This puts forward very high requirements on the energy density of the power supply of the forming system and the structure and electrical strength of the forming coil, which increases the complexity of the system and the cost of forming, which limits the application potential of electromagnetic forming technology in the field of advanced manufacturing to a certain extent, hinders the Process of Industrialized Application of Electromagnetic Forming Technology
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[0035] The present invention will be further described below through specific embodiments.
[0036] In this embodiment, the present invention can be applied to the plate free bulging process. Such as figure 1 It is a schematic diagram of electromagnetic plate free bulging based on controllable ultrasonic assistance, but it is not limited to its application in the plate free bulging process.
[0037] The device includes an electromagnetic forming system, an ultrasonic vibration generation system and a control system: an electromagnetic forming system, which includes a discharge circuit and an electromagnetic forming coil; generates pulsed electromagnetic force to drive the workpiece to deform; an ultrasonic vibration generation system generates a given value in the workpiece Parameters of ultrasonic vibration; control system, control electromagnetic forming system and ultrasonic vibration generation system, can preset and adjust the ultrasonic vibration parameters and electromagneti...
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The invention discloses an electromagnetic forming device and method based on ultrasonic assisting, and relates to the field of metal forming. The device comprises an electromagnetic forming system, an ultrasonic vibration generation system and a control system, the ultrasonic vibration generation system is composed of an ultrasonic generator, a ring energy device, a variable-amplitude pole and avibration head, a preset through hole in a workpiece fixing device is in contact with a workpiece to be formed to transmit high-frequency vibration, the electromagnetic forming system is composed of aforming coil arranged nearby the workpiece to be formed and a discharge loop, the control system can control a pulse power source system, the magnitude of forming force is adjusted, the ultrasonic vibration generation device can be controlled, the frequency and the magnitude of ultrasonic vibration can be adjusted, through proper ultrasonic and discharge parameter setting, flowing stress and deforming resistance of a metal workpiece can be reduced, the needs of the electromagnetic forming process for the power source energy storage density and the forming coil strength can be reduced, and theforming property and the forming effect of the workpiece can be improved.
Description
Technical field [0001] The invention relates to the field of metal forming, in particular to an ultrasonic-assisted electromagnetic forming device and method. Background technique [0002] Lightweight manufacturing can reduce energy consumption and pollution, and has become an important development direction of modern advanced manufacturing technology. The use of lightweight alloy materials is one of the important ways to achieve lightweight. However, light alloys such as aluminum alloys have poor room temperature formability, large unloading springback, and are prone to sharp corner cracking and distortion. [0003] Electromagnetic forming technology uses the electromagnetic force between the forming coil and the workpiece to complete the forming of the material. It has the characteristics of high speed, non-contact, simple tooling, and easy automation. Aiming at the bottleneck of existing forming technology for lightweight alloys such as aluminum and titanium, electromagnetic f...
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IPC IPC(8): B21D26/14B21D35/00
CPCB21D26/14B21D35/008
Inventor 黄澜涛丁梓楠周一涵曾金邹嘉豪
Owner XIAMEN UNIV