Pure bending age forming die for autoclave

Abstract

The invention relates to a pure bending age forming die for an autoclave, which comprises a base, a cover plate, a box body, mould boards and a loading device. The loading device mainly comprising a worm, two worm wheels, two screw rods, press shafts, a press shaft bracket and a splint is arranged on the upper surface of the base; the splint is positioned at the center of the upper surface of the base; two mould boards are fixed on the upper surface of the splint; and the press shaft bracket is sleeved on the mould boards and is fixedly connected with the splint. The upper press shaft and the lower press shaft are arranged on the box body and the press shaft bracket respectively. When external force is transferred to the splint by the screw rods, screw nuts of the screw rods convert the rotation of the screw rods into the translation of the splint along the inner surface of the box body to push the mould boards and the lower press shaft to move upwards, therefore, the pure bending loading to test pieces is completed. The pure bending age forming die has concise appearance; the large circular bead transition is applied at the joint between the surfaces as much as possible; the positions for possibly causing the tension fracture of a vacuum bag are covered by the cover plate; the base is lager than the box body; and the pure bending age forming die has the characteristics of simple structure and convenient use.

Description

1. Technical field [0001] The invention relates to the field of sheet metal forming, and relates to a purely bending aging forming mold for a hot-pressed tank. 2. Background technology [0002] Age forming (Age Forming), usually called aging stress relaxation forming in China, and called creep age forming (Creep Age-forming, CAF) abroad. [0003] A typical aging forming process mainly uses the stress relaxation effect of alloy materials at high temperature to cause a certain initial deformation of the workpiece, and maintains the deformation of the workpiece through an external load. After standing at a constant temperature for a period of time, the stress level of the material increases with time. And reduce, part of the elastic strain into plastic strain, so as to achieve the purpose of forming. [0004] For the research on aging forming bending springback, pure bending research is the most concise. The present invention designs a set of forming molds for research. for p...

AI Technical Summary

Problems solved by technology

However, when the invention is aging-forming the test piece, the mold needs to wrap the vacuum bag

Due to the complex shape of the mold, it is not easy to wrap the vacuum bag, and it is easy to damage the vacuum bag

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