Device for realizing superplastic forming and hot forming combined process under vacuum environment

Abstract

The invention provides a device for realizing a superplastic forming and hot forming combined process under a vacuum environment. The device comprises a main machine body, a vacuum chamber, a heating system, a vacuum system, upper pressure head assemblies and a superplastic air source system; the main machine body comprises an upper platform and a lower platform; the vacuum chamber is arranged on the lower platform; the heating system is arranged on the inner wall of the vacuum chamber; the vacuum system is arranged at the outer side of the main machine body, and is connected with the vacuum chamber; the upper pressure head assemblies are arranged at the top part of the vacuum chamber; and the superplastic air source system is connected with the vacuum chamber. Compared with the prior art, the device provided by the invention has the following beneficial effects that combined machining ability is enhanced with the combined device not only capable of performing superplastic forming in the vacuum environment but also capable of performing hot forming in the vacuum environment.

Description

technical field [0001] The invention relates to a device for realizing superplastic forming and thermoforming composite technology in a vacuum environment, and belongs to the technical field of plastic forming equipment. Background technique [0002] Aerospace products have the typical characteristics of multiple varieties and small batches. Configuring corresponding independent processing equipment for each type of parts will increase the cost of the enterprise and cause the utilization rate of equipment to be extremely low. At the same time, the manufacturing of aerospace structural parts has extensive demand for composite processing technology. [0003] Existing thermoforming machine tools are mainly divided into two types, one is refitted by a hydraulic press, adopts surrounding heating and adds heat preservation measures; Automatic control function. [0004] Existing superplastic forming equipment is also mainly divided into two types, one is based on the general hydra...

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Problems solved by technology

[0005] After the thermoforming equipment is integrated with the superplastic air source system, it can realize the functions of superplastic forming and thermoforming, but it cannot be formed in a vacuum environment, and the parts are easily oxidized; after the vacuum diffusion welding / brazing equipment is integrated with the superplastic air source system, it can realize Vacuum superplastic forming function, but not thermoforming function

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