Forming device and forming method of electromagnetic induction assisting prestress

Abstract

The invention discloses a forming device and a forming method of electromagnetic induction assisting prestress. A forming mold and a manipulator are fixed on the upper portion of a base. An electromagnetic coil is mounted at the chuck part of the manipulator, wire connecting of an electromagnetic induction control system is completed correspondingly, the electromagnetic coil is ensured to generate a pulsed magnetic field successfully in the forming process, and induced current is generated on a sheet material. The sheet material is placed on the mold, and a vacuum bag is placed on the sheet material and is evacuated through an evacuating device, so that the sheet material is pressed on the mold tightly, and effect of vacuum compaction is achieved. A computer control system is operated to form the electromagnetic induction assisting prestress. According to the forming device, when the pulsed magnetic field of the inducing coil penetrates a workpiece, the workpiece generates the induced current, plastic deformation capacities of metal materials are improved by the current, crystallizing process of amorphous alloy is promoted, solidification structure of the alloy is refined, deforming resistance during the forming process is reduced, springback amount is reduced, forming accuracy and comprehensive mechanical properties are improved.

Description

technical field [0001] The invention relates to the technical field of sheet metal structure forming, in particular to an electromagnetic induction assisted prestress forming device and a forming method. Background technique [0002] At present, in the modern manufacturing industry, most of the workpieces such as aircraft skin and integral wall panel parts, automobile covering parts, and household appliance shells are stamped parts. In order to produce plastic deformation to obtain formed sheet metal parts of required shape and size, this forming method generally needs to be processed by convex and concave molds to manufacture shell parts. Due to the long design and manufacturing cycle and high cost of convex-concave molds, this method is suitable for mass production, but not suitable for enterprises to produce single small batch parts and trial production of new product prototype systems, so it will bring great benefits for enterprises to compete in the new product market ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of poor surface quality, complex operation process and unstable forming process in the prior art, reduce the deformation resistance during the forming process, reduce the amount of springback, improve the forming accuracy and the mechanical properties of structural materials, this paper The invention proposes an electromagnetic induction assisted prestressed forming device and forming method. In this method, the vacuum compaction method is used to make the workpiece deform as expected within the elastic range, and the induced current generated by the principle of electromagnetic induction is used for electroplastic forming; through digital precise control The forming device realizes electromagnetic induction assisted prestressing forming

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