Aluminum alloy electric arc additive manufacturing quality control system and method

Abstract

The invention belongs to the field of additive manufacturing, and discloses an aluminum alloy electric arc additive manufacturing quality control system and method. Formed aluminum alloy accumulated metal is machined in a rotational friction plastic deformation manner, the defects of pores, cracks and the like possibly existing in original accumulated metal can be effectively eliminated, and meanwhile, aluminum alloy accumulated metal grains and a precipitation phase are refined, so that the mechanical property is improved, the problem that the forming quality is difficult to effectively control during aluminum alloy electric arc additive manufacturing is solved, the method is completely different from a process optimization and wire selection method in an existing electric arc additive manufacturing aluminum alloy component quality control technology, the manufacturing efficiency is high, the cost is low, and the forming quality is stable.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more particularly, 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 stacking layer by layer to realize the manufacture of components. The manufacturing method is low in cost, high in efficiency and low in pollution, and can form large and complex components of various structural forms by adjusting the stacking process. Therefore, Arc Fuse Additive Manufacturing is an effective method to manufacture aluminum alloy components. [0003] Due to the properti...

AI Technical Summary

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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