Squeezing forming method and forming tool for thin-wall component with inner rib

Abstract

The invention relates to an extrusion spinning forming method and tool for a thin-wall component with an inner rib. The extrusion spinning forming method comprises the steps that a to-be-formed blank is arranged on a spinning mold with a groove in a sleeving mode, and the first end of the to-be-formed blank and the spinning mold are pressed tightly; an axial restraint ring is used for pressing the second end of the blank to be formed so that the axial pressure on the blank to be formed can be adjusted in the forming process; the to-be-formed blank is driven to rotate, extrusion forming is conducted on the area, with the grooves, of the to-be-formed blank, and spinning forming is conducted on the area without the grooves of the to-be-formed blank; and the wall thickness of the inner rib of the formed thin-wall component with the inner rib is measured, and local shape correction is conducted on the area which is not fully filled. The extrusion spinning forming method of the thin-wall component with the inner rib aims at solving the problem that an existing spinning process cannot meet the requirement for forming of a component with a large rib and a high wall thickness ratio.

Description

technical field [0001] The invention relates to the technical field of metal plastic forming, in particular to an extrusion and spin forming method and a forming tool for a thin-walled member with internal ribs. Background technique [0002] With the rapid development of high-tech industries such as aerospace and weapon systems, advanced spacecraft, rockets, satellites, and missiles are in urgent need of a large number of large and complex integral thin-walled shells with very significant structural benefits to reduce mass and improve overall performance. In order to reduce the mass of aircraft, improve reliability, and increase payload, large thin-walled aluminum alloy cylindrical shells with reinforcing ribs are widely used on rockets and missiles. At present, the milling panel-bending-welding process is generally used in China to process thin-walled cylinders with grid ribs. The processing involves three main processes: high-speed precision milling, high-precision bending...

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a extrusion spinning forming method and forming tool for thin-walled components with internal ribs, which solves the technical problem that the existing spinning process cannot satisfy the forming of components with large ribs and high wall-thickness ratio

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