Destressing warhead-curve-shaped aluminum alloy thin-walled cylinder and machining process of destressing warhead-curve-shaped aluminum alloy thin-walled cylinder

Abstract

The invention discloses a destressing warhead-curve-shaped aluminum alloy thin-walled cylinder and a machining process of the destressing warhead-curve-shaped aluminum alloy thin-walled cylinder. The destressing warhead-curve-shaped aluminum alloy thin-walled cylinder and the machining process solve the problems that an existing thin-walled cylinder is not thorough in destressing and the welding strength of weld joints can be easily lowered due to machining. The destressing warhead-curve-shaped aluminum alloy thin-walled cylinder comprises a warhead-curve-shaped thin-walled cylinder body (2), a front flange (1) and a rear flange (7). A front annular weld joint (3) in the perpendicular direction is arranged between an annular groove (10) of an annular cylinder body (9) arranged on the side face of the rear end of the front flange (1) and the front end of the warhead-curve-shaped thin-walled cylinder body (2). A hole base hole (4) is formed in the cylinder wall of the warhead-curve-shaped thin-walled cylinder body (2), and an positioning annular step (11) is arranged on the outer side wall of a hole base (5). The invention discloses an effective method for removing welding stress of the thin-walled cylinder. By means of the destressing warhead-curve-shaped aluminum alloy thin-walled cylinder and the machining process, surface residual tension of the thin-walled cylinder is effectively eliminated, the material structural strength is improved, and the fatigue life is prolonged.

Description

technical field [0001] The invention relates to a thin-walled cylinder, in particular to an aluminum alloy thin-walled cylinder with a warhead curve shape and a processing technology thereof. Background technique [0002] The thin-walled cylinder in the curved shape of the warhead is generally rolled and welded from aluminum sheets, and flanges are generally welded at both ends of the thin-walled cylinder to meet the requirements for strengthening the strength of the cylinder. In the process of processing this product, in order to meet the requirements of surface accuracy, after the welding is completed, the surface must generally be finished, especially for the position of the weld. The way is unequal thickness overlapping structure. Due to the interference of the flange, the weld seam is often partially processed, which affects the welding strength. In addition, when there is a hole seat on the thin-walled cylinder with a curved shape of the warhead, when the hole seat an...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a thin-walled aluminum alloy cylinder with a curved shape of a stress-relieving warhead, which solves the technical problems that the existing thin-walled cylinders have incomplete stress-relief and that machining can easily reduce the welding strength of the weld seam.

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