Processing Technology of Curved Aluminum Alloy Thin-wall Cylinder for Stress Relief Projectile

Abstract

The invention discloses an aluminum alloy thin-walled cylinder with a curved shape of a stress-relief warhead and a processing technology thereof, which solves the problems of incomplete stress-relief and easy reduction of welding seam welding strength of the existing thin-walled cylinder. It includes a warhead curved thin-walled cylinder (2), a front flange (1) and a rear flange (7), and an annular cylinder (9) arranged on the rear end side of the front flange (1). Between the annular groove (10) and the front end of the warhead curved thin-walled cylinder (2), there is a vertical front annular welding seam (3), and on the cylinder wall of the warhead curved thin-walled cylinder (2), there is a The socket hole (4) is provided with a positioning annular step (11) on the outer wall of the hole socket (5), and discloses an effective method for removing welding stress of a thin-walled cylinder. The invention effectively eliminates the residual tensile stress on the surface of the thin-walled cylinder, and improves the structural strength and fatigue life of the material.

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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