A kind of aluminum alloy compartment forming method

Abstract

The invention discloses a method for forming an aluminum alloy cabin section, which belongs to the technical field of rapid prototyping. The forming method of the aluminum alloy cabin section includes: using arc additive manufacturing technology to shape the front end frame; using arc additive manufacturing technology to shape the rear end frame; according to the size of the front end frame and the size of the rear end frame , forming the skin; the front frame, the rear frame and the skin are integrated by laser welding to obtain an aluminum alloy cabin section. The forming method of the aluminum alloy cabin section of the present invention can realize the molding of the overall metal cabin section shell with a super large diameter of 3.8m and above, which reduces the product processing allowance, improves the material utilization rate, and has a simple structure of the tooling, which reduces the production cost and shortens the production time. Production cycle.

Description

technical field [0001] The invention relates to the technical field of rapid prototyping, in particular to a method for forming an aluminum alloy cabin section. Background technique [0002] At this stage, the aluminum alloy cabin is usually formed by integral casting. However, due to the influence of the molding equipment and the technical level, the aluminum alloy cabin with a large diameter is difficult to achieve by the method of whole-piece casting. The riveted structure is used, but the efficiency is low. [0003] In the prior art, aluminum alloy cabins are formed by friction stir welding of forged rings and sheet materials, with a diameter of up to 3.35m, but it is difficult to form cabins with a diameter of 3.8m or even a super-large diameter of 4.5m. [0004] Friction stir welding requires the workpiece to have rigid support to resist the upsetting force during welding, so special rigid support tooling is required, the structure is complex, the process preparation t...

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Problems solved by technology

[0006] The invention provides a method for forming an aluminum alloy cabin section, which solves or partially solves the problem that in the prior art, the aluminum alloy cabin section is formed by friction stir welding of a forging ring and a sheet material, and it is impossible to realize a whole body with a super large diameter of 3.8m or above. The shell of the metal cabin is formed, the product processing allowance is high, the material utilization rate is low, the tooling structure is complicated, the production cost is increased, and the technical problems of the production cycle are increased

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