Wire material electric arc fused deposition and laser shock forging composite additive and subtractive manufacturing method and device

Abstract

The invention relates to the technical field of additive and subtractive manufacturing methods and more specifically relates to a wire material electric arc fused deposition and laser shock forging composite additive and subtractive manufacturing method and device. The electric arc fused deposition technology, the laser shock forging technology and the mechanical milling technology are coupled; first, a cladding layer is formed by electric arc fused deposition; when the temperature sensor detects the temperature of the cladding layer to a set laser forging temperature, the laser forging and the electric arc fused deposition are simultaneously performed, and laser shock forging is performed on the molding region, which can reduce the manufacturing error during the wire accumulation processand the error caused by the surface roughness of the forging part, and improve the overall precision of the part. after the electric arc fused deposition and the laser shock forging are finished, parts are transferred to the milling station to mechanically mill the surface of the parts to improve surface accuracy, reduce the manufacturing error during wire stacking and the error caused by the surface roughness of the part forging, improve the overall accuracy of the parts and overcome the shortcomings of poor wire forming precision in electric arc fused deposition.

Description

technical field [0001] The invention relates to the technical field of additive and subtractive material manufacturing methods, and more specifically, relates to a method and device for manufacturing additive and subtractive materials combined with wire arc deposition and laser shock forging. Background technique [0002] Additive manufacturing technology can directly use 3D-CAD models to make complex models, which can not only make prototypes, but also produce parts and molds. Metal additive manufacturing processes are generally divided into two types: powder bed fusion and direct energy deposition. The former obtains predetermined parts by sintering and melting metal powder layer by layer. Due to its slow molding rate and small molding chamber volume, it is not applicable. It is used in the manufacture of large components; the latter uses laser, electron beam or arc discharge to melt powder or wire to form weld bead deposits and accumulate three-dimensional shapes, which a...

AI Technical Summary

Problems solved by technology

However, the wire arc deposition technology also has some obvious disadvantages, such as the large surface fluctuations of the additively manufactured parts, the poor surface quality of the formed parts, the poor dimensional accuracy of the parts, and the residual stress during the deposition process. well controlled, these are to a certain extent restricting the development of wire arc deposition technology

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