Method for forming high-rib thin-wall cylindrical part through heat-assisted multi-spinning-roller spinning

Abstract

The invention belongs to the technical field of metal plastic processing, and discloses a method for forming a high-rib thin-wall cylindrical part through hot-assisted multi-spinning-roller spinning, which is based on a cylindrical part hot spinning forming process and comprises the following steps: firstly, carrying out sectional thinning on a cylindrical part blank by adopting a flowing spinning roller; and then a shearing spinning roller is adopted to apply local shearing deformation to the stacking position of the cylindrical part blank to achieve material separation, and a flowing spinning roller synchronously and axially feeding with the shearing spinning roller is adopted to apply radial constraint to the cylindrical part blank until the high-rib thin-wall cylindrical part is formed. According to the method, heat-assisted flow spinning and shearing forming are effectively combined, the problem that a high-rib structure and a cylindrical part base body are difficult to integrally form (especially materials such as magnesium alloy and titanium alloy with poor room-temperature plastic deformation capacity) is solved, an outer rib structure in shearing forming is improved, the utilization rate of the materials is greatly increased, and the production cost is reduced. And the progress of high-performance precise forming and manufacturing of complex components is promoted, and the requirements of aerospace carrying equipment for the advanced forming and manufacturing technology are met.

Description

technical field [0001] The invention belongs to the technical field of metal plastic processing, and in particular relates to a method for heat-assisted multi-rotor spinning to form a high-strength thin-walled cylindrical part. Background technique [0002] High-reinforced thin-walled cylindrical parts have been widely used in aviation, aerospace and other fields due to their characteristics of integration, light weight and high performance. In recent years, through innovative reforms, scholars at home and abroad have successfully realized the plastic forming of the rib structure, improved the connection accuracy of the matrix and the rib structure, and ensured the reliability of the formed high-rib thin-walled cylindrical part structure. [0003] At present, there are mainly two methods suitable for plastic forming of high-reinforced thin-walled cylindrical parts: forging forming and envelope forming. [0004] 1. Forging and forming: In the Chinese patent application docum...

AI Technical Summary

Problems solved by technology

However, envelope forming has high requirements for its mold, and due to its own structural characteristics, high-reinforced thin-walled cylindrical parts are greatly restricted in upsetting and extrusion forming.

[0006] To sum up, the existing techniques for forming high-reinforced thin-walled cylindrical parts have certain limitations because they cannot get rid of the dependence of component size on the mold, and cannot guarantee the integration of the cylindrical part base and the high-reinforced structure Component quality after chemical forming

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