An Electromagnetic Progressive Flexible Composite Forming Method

Abstract

The invention belongs to the related technical field of component forming manufacturing, and discloses an electromagnetic gradual flexible composite forming method. The electromagnetic gradual flexible composite forming method comprises the following steps: providing an electromagnetic forming device, wherein the electromagnetic forming device comprises a discharge assembly, a multi-point supporting mould and four hydraulic cylinders, and the mould surface of the multi-point supporting mould consists of multiple discrete basic bodies; adjusting the basic bodies to form a top mould surface, and moving the hydraulic cylinders to tightly press a plate component; gradually moving a discharge coil along the top mould surface, gradually discharging the discharge assembly along with movement of the discharge coil, and gradually moving the plate component towards a direction away from the discharge coil till the plate component is fitted with the top mould surface; readjusting the heights of the basic bodies to form a new top mould surface, and reclamping the plate component; re-moving the discharge coil, and gradually discharging the discharge assembly till the plate component is fitted with the new top mould surface; repeating the steps till the plate component has a target shape. By the electromagnetic gradual flexible composite forming method, wrinkling is avoided, the thinning amount and the resilience are reduced, and uniform deformation of the plate component is achieved.

Description

technical field [0001] The invention belongs to the technical field related to part forming and manufacturing, and more specifically relates to an electromagnetic progressive flexible composite forming method. Background technique [0002] Electromagnetic forming is a method of high-speed machining of metal workpieces using pulsed magnetic field force. In the process of electromagnetic forming, the material is deformed at high speed under the action of magnetic field force (forming speed is greater than 300m / s), so that electromagnetic forming can obtain higher than traditional stamping. The forming performance under processing improves the forming limit, reduces springback, suppresses wrinkling, and has high forming accuracy. [0003] At this stage, there are generally two methods for electromagnetic forming of large workpieces. One is to use multi-level and multi-directional pulsed strong magnetic field forming methods. The electromagnetic forming equipment that combines e...

AI Technical Summary

Problems solved by technology

The electromagnetic progressive flexible composite forming method combines electromagnetic progressive forming with flexible multi-point moulds, and fully utilizes the advantages of multi-point molds that can be flexibly transformed, high precision electromagnetic forming, small springback, and no scratches. It reduces the manufacturing cost of large molds, shortens the production cycle, and solves the problem of difficult forming of large and difficult-to-deform parts, further improving the plastic deformation ability and forming accuracy of difficult-to-deform plates

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