Laser welding deformation control tool and deformation control method for light weight structural cabin section and supporting lugs

Abstract

The invention provides a laser welding deformation control tool and deformation control method for a light weight structural cabin section and supporting lugs. The control method comprises the following steps of assembling the cabin section and the supporting lugs in place according to a model graph, and checking the assembling order difference of a welding part and the clearance quality; positioning and spot welding the supporting lugs and the outer end surface of the cabin section; mounting a tool assembly into the deformation control tool after positioning welding; and fixing the tool assembly to a laser welding platform to complete laser welding of the supporting lugs. According to the laser welding deformation control tool and the deformation control method, an overall assembly welding technology is adopted, the deviation between the outline size and the theoretical appearance is less than 0.5mm after integral welding is completed, the precision control effect is good, and the reliability of laser welding seams between the supporting lugs and the cabin section is good. The welding deformation control tool can effectively realize deformation control in the welding process, is simple in structure, convenient to operate, and low in manufacturing cost, can ensure the connecting strength of the supporting lugs and the cabin section, and can effectively solve the key problem ofwelding deformation.

Description

technical field [0001] The invention belongs to the technical field, and in particular relates to a laser welding deformation control tool and deformation control method for a lightweight structural cabin section and lugs in a supersonic aircraft. Background technique [0002] In recent years, with the continuous improvement of the speed of aircraft, the aerodynamic heat generated by surface friction often makes the aircraft in a high-temperature environment (such as a high temperature greater than 1000 ° C) during the operation of the aircraft. In terms of load capacity, it can withstand harsh environmental tests. At present, most of the domestic similar products adopt integral machining after casting. [0003] In order to further improve the lightweight level, a titanium alloy (TA15) 3D printed cabin section and lugs can be used to assemble and laser weld the entire titanium alloy cabin section. This solution not only greatly saves the product development cycle, but also ...

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a laser welding deformation control tool and deformation control method for lightweight structural cabin sections and lugs to solve the technical problem of how to control the welding deformation of such structures

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