Tension leveling die and method of aluminum-alloy hot- extrusion-formed cabin component

Abstract

The invention discloses a tension leveling die of an aluminum-alloy hot- extrusion-formed cabin component. The tension leveling die comprises a profiling module, a fixing base plate and four support cushion blocks and is characterized in that the profiling module is provided with a lower cavity, the fixing base plate is provided with an upper cavity, the profiling module is fastened to the fixingbase plate, the profiling module and the fixing base plate are detachably fixed together to allow the lower cavity and the upper cavity to jointly define a tension leveling cavity, the contour of thetension leveling cavity is consistent with the specific size of the appearance of the cabin component, and the depth of the tension leveling cavity is smaller than the length of the cabin component; the four support cushion blocks are used for supporting the four corners of the cabin component, and the outline dimension of the support cushion blocks is identical with that of the corner inner cavities of the cabin component. The invention further provides a tension leveling method using the tension leveling die to perform tension leveling on the cabin component. By the tension leveling die andmethod, an extruded product whose planeness and perimeter dimensional tolerance satisfy requirements can be obtained, and the yield and production efficiency of the extruded product can be improved effectively.

Description

technical field [0001] The invention belongs to the field of hot extrusion forming in metal plastic forming technology, and in particular relates to a stretching and straightening die and a stretching and straightening method for an aluminum alloy hot extrusion forming cabin body member. Background technique [0002] At present, the application range of large-scale, complex and lightweight structures in the aerospace field is becoming wider and wider. For the large-size thin-walled cavity cabin structure, hot extrusion technology is used for integrated forming manufacturing. Compared with the original traditional forging or casting combined with machining, it has obvious advantages in dimensional accuracy and mechanical property control. Advantage. However, since the cabin components are large-scale special-shaped thin-walled structures, large deformations will occur during the heat treatment process after hot extrusion forming. How to effectively control the deformation of...

AI Technical Summary

Problems solved by technology

However, since the cabin components are large-scale special-shaped thin-walled structures, large deformations will occur during the heat treatment process after hot extrusion forming. How to effectively control the deformation of the cabin components formed by hot extrusion during the post-processing process It has become the key direction of research for those skilled in the art

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