Device and method for efficient additive manufacturing of complex inner cavity aluminum alloy structural member

Abstract

The invention discloses a device and method for efficient additive manufacturing of a complex inner cavity aluminum alloy structural member. The device comprises a welding platform, a member supporting plate, a water cooling system, a lifting system and a welding work station. The surface of the welding platform is provided with a mounting through hole. An electric arc additive technology is adopted by the welding work station to implement multi-layer surfacing welding. The water cooling system comprises a water cooling barrel, a water storage tank, a water pump, a water inlet pipe and a waterdischarging pipe, wherein the top surface of the water cooling barrel is opened. The lifting system comprises a lifting platform, a telescopic frame and a lifting driving device. The member supporting plate is arranged on the surface of the lifting platform. The lifting platform is installed in the water cooling barrel through the telescopic frame. The bottom end of the telescopic frame is fixedto the bottom of the water cooling barrel. The lifting driving device drives the telescopic frame to do reciprocating motion in the vertical direction so as to drive the member supporting plate on thelifting platform to do reciprocating motion in the vertical direction. The position of a welding gun is less limited by the height of a part, the cooling temperature is continuously adjusted, splashing is prevented, and the additive preparation of the aluminum alloy structural member can be rapidly and effectively carried out.

Description

technical field [0001] The invention relates to a printing device and method, in particular to a device and method for efficiently additively manufacturing complex inner cavity aluminum alloy structural parts, and belongs to the technical field of aluminum alloy arc additive manufacturing. Background technique [0002] Arc additive manufacturing belongs to the category of 3D printing technology. It is based on the principle of discrete-stack manufacturing. There are many implementation methods for additive manufacturing technology. Many successful commercialized additive manufacturing technologies use non-metal forming materials. Its application in the industrial field is limited, and metal additive manufacturing technology is more important in the industrial field, especially titanium alloys, aluminum alloys, magnesium alloys, etc. Commonly used heat sources for direct forming metal parts mainly include lasers, electron beams, and electric arcs. [0003] Arc additive manuf...

AI Technical Summary

Problems solved by technology

[0005] Due to its active chemical properties, aluminum alloys require all-round gas protection in casting, and the equipment is expensive, and the preparation and processing cycle is long; because the aluminum alloy welding wire can realize real-time argon protection during the melting process, and can complete the accumulation according to the established method , so the use of arc additive manufacturing aluminum alloy structural parts will be a good solution to the existing problems

At present, there are few researches on aluminum alloy arc additive manufacturing, which is still in its infancy, and in the existing technology, with multi-layer printing, in the accumulation process, there is a need to constantly adjust the height of the welding torch, and it cannot be adjusted Problems such as timely adjustment of the temperature of the printed parts

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