A quality control system and method for aluminum alloy arc additive manufacturing

Abstract

The invention belongs to the field of additive manufacturing, and discloses a quality control system and method for aluminum alloy arc additive manufacturing, which processes the formed aluminum alloy accumulation metal through the plastic deformation mode of rotating friction, and can effectively eliminate the original accumulation metal Defects such as pores and cracks that may exist inside, and at the same time refine the metal grains and precipitated phases of aluminum alloy accumulation, improve mechanical properties, and overcome the problem that the forming quality of aluminum alloy arc additive manufacturing is difficult to effectively control, which is completely different from the existing arc The method of process optimization and wire selection in the quality control technology of additive manufacturing aluminum alloy components has the advantages of high manufacturing efficiency, low cost, and stable forming quality.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more specifically relates to a quality control system and method for aluminum alloy arc additive manufacturing. Background technique [0002] Aluminum alloy has low density, good electrical conductivity, thermal conductivity, and ductility, and is widely used in aviation, aerospace, ships, weapons and other fields. Therefore, aluminum alloy is a very important and widely used metal material. Arc fuse additive manufacturing uses an arc heat source to melt the metal wire, and the molten metal is formed by layer-by-layer accumulation to realize the manufacture of components. The manufacturing method is low in cost, high in efficiency and less in pollution, and can form large and complex components of various structural forms by regulating and stacking processes. Therefore, arc fuse additive manufacturing is an effective method for manufacturing aluminum alloy components. [0003] Due to t...

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Problems solved by technology

This patent is a process method to control the quality of aluminum alloy arc additive manufacturing. However, there will be electromagnetic interference between multiple auxiliary power supplies and the main power supply, which will cause large fluctuations in the accumulation current and voltage, which will easily lead to the formation of aluminum alloy arc additive manufacturing. Unstable quality

For another example, CN110181192A proposes an aluminum alloy powder core wire for arc welding additive manufacturing, which introduces Ba, Ca, and Sr into the wire powder core to reduce the porosity of the wire in the arc additive manufacturing process. Avoiding hydrogen embrittlement in stacked metals is a material selection method to control the quality of aluminum alloy arc additive manufacturing. However, the wire needs frequent trial and error formulations and repeated manufacturing for different types of aluminum alloys and different arc additive manufacturing processes. Wire, which increases the cost of wire manufacturing and reduces the efficiency of aluminum alloy arc additive manufacturing

[0005] Therefore, further research is necessary to obtain a high-efficiency manufacturing system and method that can effectively control the forming quality, and effectively solve the problems of pores, cracks, grains, and coarse precipitates in aluminum alloy components.

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