Electromagnetic pulse strengthening and forming device adopting small ball cushion die

Abstract

The invention discloses an electromagnetic pulse strengthening and forming device adopting a small ball cushion die. The device mainly comprises the small ball cushion die, a flexible cushion layer, an electromagnetic coil, an electromagnetic pulse power source and a control system, wherein the flexible cushion layer is laid on the small ball cushion die; a skin wallboard blank is laid on the flexible cushion layer; the electromagnetic coil is connected with the electromagnetic pulse power source through a wire; and the control system is connected with the electromagnetic pulse power source and a driving device of the small ball cushion die and the electromagnetic coil. Under the dual action of pulse magnetic field force generated by the electromagnetic coil and the supporting force of the small ball cushion die, the upper and lower surfaces of the skin wallboard blank are respectively provided with a pressure stress layer with certain depth, and effects of strengthening a skin wallboard and prolonging fatigue life are achieved. When skin wallboard parts are processed by using the device, a heat treatment state of the skin wallboard blank can directly adopt a using state, so the steps of pretreatment, intermediate heat treatment or final heat treatment in the conventional process are simplified or eliminated.

Description

technical field [0001] The invention belongs to the technical field of mechanical forming, and relates to plate strengthening and forming, in particular to an electromagnetic pulse strengthening and forming device for skin panel components using a small ball cushion mold. Background technique [0002] At present, the strengthening of domestic skin panel components mainly adopts shot peening technology; the forming of skin panel components mainly adopts drawing, shot blasting and aging forming technologies. [0003] On the one hand, these forming techniques are strongly dependent on process equipment. Due to the limitation of equipment processing capacity, especially for some large components, they have to be decomposed into small components and then connected together, which greatly reduces the overall performance of components; or adopt large equipment, which poses a huge challenge to the equipment manufacturing industry challenge. On the other hand, this type of forming ...

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Problems solved by technology

This patent relates to a system and method for treating the surface of a workpiece under the action of electromagnetic pulses. The design purpose is mainly aimed at the strengthening requirements of the workpiece surface, overcoming the shortcomings of shot peening, and explaining the feasibility of its invention from the perspective of finite element analysis. properties, but there is no description of practical application. In addition, it is not aimed at the strengthening and forming of skin panel members

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