Non-die hydraulic integrally forming ultra-thin spherical shell technology

Abstract

The ultra-thin spherical shell is highly valued by users for its good force characteristics, beautiful appearance and material saving. However, the traditional complex manufacturing technology prevents it from being widely used. The moldless overall hydroforming ultra-thin spherical shell technology simplifies various special-shaped spherical shells such as metal standard oval balls, eggshell balls, and raindrop balls, and various metal special-shaped spherical shells made of different materials. body manufacturing process. The production cost is only 1 / 20 of the traditional technology to manufacture the same shell, and the production cycle is 1 / 50. This technology is ideal for the production of ultra-thin metal spherical shells and ultra-thin spherical shells made of different materials. Economical and practical manufacturing technology.

Description

(1).Technical field [0001] The invention relates to the moldless integral hydroforming technology in the field of ultra-thin spherical shell manufacturing. [0002] Ultra-thin spherical shells refer to metal standard spheres, elliptical spheres, eggshell spheres, raindrop spheres, and standard spheres, ellipsoidal spheres, Various special-shaped spherical shells such as eggshell balls and raindrop balls. Due to its good mechanical characteristics, the ultra-thin spherical shell is only half of the wall thickness of the ordinary cylindrical tank under the premise of the same diameter and internal pressure as the ordinary cylindrical tank; Under the premise of a certain material area, the volume of the ultra-thin-wall spherical shell is the largest. In addition, its unique beautiful appearance, low wind pressure value and low snow pressure value have attracted much attention from users. However, the traditional manufacturing process is complex and requires expensive equipment...

AI Technical Summary

Problems solved by technology

The disadvantages of this spherical ultra-thin shell manufacturing technology are: firstly, a mold with the same curvature as the spherical ultra-thin shell is required, and high-quality molds are difficult to manufacture and expensive; the metal plate is manually beaten on the bottom mold for processing When each part of the ball-type ultra-thin shell is formed, the labor intensity is very high, the production cycle is long, and it will generate a lot of noise. The surface of the shell is knocked out to have concave and convex points, and finally it is assembled and welded on the pre-manufactured On the metal frame, it is not only necessary to manufacture a high-precision metal frame, but also the quality of assembly and welding is difficult to control; it is very difficult for each group to weld, because the metal ball skin is thin, heating will cause serious deformation, and the overall shape of the sphere produced is Large size error and poor surface finish

Although this technology overcomes the shortcomings of the above two technologies for manufacturing ultra-thin spherical shells, because this technology uses explosives as energy to complete the molding, and the use of explosives has extremely strict legal regulations

This makes it difficult to apply the technology

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